What is a covenant?

Please correct me if I am wrong...a covenant is similar to a 'binding contract'.

Covenants of the Bible

God's Covenant With Noah

Genesis 9
Then God blessed Noah and his sons, saying to them, "Be fruitful and increase in number and fill the earth. The fear and dread of you will fall upon all the beasts of the earth and all the birds of the air, upon every creature that moves along the ground, and upon all the fish of the sea; they are given into your hands. Everything that lives and moves will be food for you. Just as I gave you the green plants, I now give you everything.
"But you must not eat meat that has its lifeblood still in it. And for your lifeblood I will surely demand an accounting. I will demand an accounting from every animal. And from each man, too, I will demand an accounting for the life of his fellow man.

"Whoever sheds the blood of man,
by man shall his blood be shed;
for in the image of God
has God made man.

As for you, be fruitful and increase in number; multiply on the earth and increase upon it."
Then God said to Noah and to his sons with him: "I now establish my covenant with you and with your descendants after you and with every living creature that was with you—the birds, the livestock and all the wild animals, all those that came out of the ark with you—every living creature on earth. I establish my covenant with you: Never again will all life be cut off by the waters of a flood; never again will there be a flood to destroy the earth."

And God said, "This is the sign of the covenant I am making between me and you and every living creature with you, a covenant for all generations to come: I have set my rainbow in the clouds, and it will be the sign of the covenant between me and the earth. Whenever I bring clouds over the earth and the rainbow appears in the clouds, I will remember my covenant between me and you and all living creatures of every kind. Never again will the waters become a flood to destroy all life. Whenever the rainbow appears in the clouds, I will see it and remember the everlasting covenant between God and all living creatures of every kind on the earth."

Hmmm, covenant still in effect? I haven't seen any floodwaters...

God's Covenant With Abram

Genesis 15

After this, the word of the LORD came to Abram in a vision:

"Do not be afraid, Abram.
I am your shield,
your very great reward. "

But Abram said, "O Sovereign LORD, what can you give me since I remain childless and the one who will inherit my estate is Eliezer of Damascus?" And Abram said, "You have given me no children; so a servant in my household will be my heir."

Then the word of the LORD came to him: "This man will not be your heir, but a son coming from your own body will be your heir." He took him outside and said, "Look up at the heavens and count the stars—if indeed you can count them." Then he said to him, "So shall your offspring be."

Abram believed the LORD, and he credited it to him as righteousness.

He also said to him, "I am the LORD, who brought you out of Ur of the Chaldeans to give you this land to take possession of it."

But Abram said, "O Sovereign LORD, how can I know that I will gain possession of it?"

So the LORD said to him, "Bring me a heifer, a goat and a ram, each three years old, along with a dove and a young pigeon."

Abram brought all these to him, cut them in two and arranged the halves opposite each other; the birds, however, he did not cut in half. Then birds of prey came down on the carcasses, but Abram drove them away.

As the sun was setting, Abram fell into a deep sleep, and a thick and dreadful darkness came over him. Then the LORD said to him, "Know for certain that your descendants will be strangers in a country not their own, and they will be enslaved and mistreated four hundred years. But I will punish the nation they serve as slaves, and afterward they will come out with great possessions. You, however, will go to your fathers in peace and be buried at a good old age. In the fourth generation your descendants will come back here, for the sin of the Amorites has not yet reached its full measure."

When the sun had set and darkness had fallen, a smoking firepot with a blazing torch appeared and passed between the pieces. On that day the LORD made a covenant with Abram and said, "To your descendants I give this land, from the river of Egypt to the great river, the Euphrates- the land of the Kenites, Kenizzites, Kadmonites, Hittites, Perizzites, Rephaites, Amorites, Canaanites, Girgashites and Jebusites."

The Covenant of Circumcision

Genesis 17

When Abram was ninety-nine years old, the LORD appeared to him and said, "I am God Almighty ; walk before me and be blameless. I will confirm my covenant between me and you and will greatly increase your numbers."
Abram fell facedown, and God said to him, "As for me, this is my covenant with you: You will be the father of many nations. No longer will you be called Abram ; your name will be Abraham, for I have made you a father of many nations. I will make you very fruitful; I will make nations of you, and kings will come from you. I will establish my covenant as an everlasting covenant between me and you and your descendants after you for the generations to come, to be your God and the God of your descendants after you. The whole land of Canaan, where you are now an alien, I will give as an everlasting possession to you and your descendants after you; and I will be their God."

Then God said to Abraham, "As for you, you must keep my covenant, you and your descendants after you for the generations to come. This is my covenant with you and your descendants after you, the covenant you are to keep: Every male among you shall be circumcised. You are to undergo circumcision, and it will be the sign of the covenant between me and you. For the generations to come every male among you who is eight days old must be circumcised, including those born in your household or bought with money from a foreigner—those who are not your offspring. Whether born in your household or bought with your money, they must be circumcised. My covenant in your flesh is to be an everlasting covenant. Any uncircumcised male, who has not been circumcised in the flesh, will be cut off from his people; he has broken my covenant."

God also said to Abraham, "As for Sarai your wife, you are no longer to call her Sarai; her name will be Sarah. I will bless her and will surely give you a son by her. I will bless her so that she will be the mother of nations; kings of peoples will come from her."

Abraham fell facedown; he laughed and said to himself, "Will a son be born to a man a hundred years old? Will Sarah bear a child at the age of ninety?" And Abraham said to God, "If only Ishmael might live under your blessing!"

Then God said, "Yes, but your wife Sarah will bear you a son, and you will call him Isaac. I will establish my covenant with him as an everlasting covenant for his descendants after him. And as for Ishmael, I have heard you: I will surely bless him; I will make him fruitful and will greatly increase his numbers. He will be the father of twelve rulers, and I will make him into a great nation. But my covenant I will establish with Isaac, whom Sarah will bear to you by this time next year." When he had finished speaking with Abraham, God went up from him.

On that very day Abraham took his son Ishmael and all those born in his household or bought with his money, every male in his household, and circumcised them, as God told him. Abraham was ninety-nine years old when he was circumcised, and his son Ishmael was thirteen; Abraham and his son Ishmael were both circumcised on that same day. And every male in Abraham's household, including those born in his household or bought from a foreigner, was circumcised with him.

God with Moses (confirming the covenant)
Law added to the covenant 430 years later, original terms were only circumcision...

Exodus 24

Then he said to Moses, "Come up to the LORD, you and Aaron, Nadab and Abihu, and seventy of the elders of Israel. You are to worship at a distance, but Moses alone is to approach the LORD; the others must not come near. And the people may not come up with him."
When Moses went and told the people all the LORD's words and laws, they responded with one voice, "Everything the LORD has said we will do." Moses then wrote down everything the LORD had said.
He got up early the next morning and built an altar at the foot of the mountain and set up twelve stone pillars representing the twelve tribes of Israel. Then he sent young Israelite men, and they offered burnt offerings and sacrificed young bulls as fellowship offerings to the LORD. Moses took half of the blood and put it in bowls, and the other half he sprinkled on the altar. Then he took the Book of the Covenant and read it to the people. They responded, "We will do everything the LORD has said; we will obey."

Moses then took the blood, sprinkled it on the people and said, "This is the blood of the covenant that the LORD has made with you in accordance with all these words."

Moses and Aaron, Nadab and Abihu, and the seventy elders of Israel went up and saw the God of Israel. Under his feet was something like a pavement made of sapphire, clear as the sky itself. But God did not raise his hand against these leaders of the Israelites; they saw God, and they ate and drank.

The LORD said to Moses, "Come up to me on the mountain and stay here, and I will give you the tablets of stone, with the law and commands I have written for their instruction."

Then Moses set out with Joshua his aide, and Moses went up on the mountain of God. He said to the elders, "Wait here for us until we come back to you. Aaron and Hur are with you, and anyone involved in a dispute can go to them."

When Moses went up on the mountain, the cloud covered it, and the glory of the LORD settled on Mount Sinai. For six days the cloud covered the mountain, and on the seventh day the LORD called to Moses from within the cloud. To the Israelites the glory of the LORD looked like a consuming fire on top of the mountain. Then Moses entered the cloud as he went on up the mountain. And he stayed on the mountain forty days and forty nights.

The New Covenant

Ezekiel 34:24-31

I will save my flock, and they will no longer be plundered. I will judge between one sheep and another. I will place over them one shepherd, my servant David, and he will tend them; he will tend them and be their shepherd. I the LORD will be their God, and my servant David will be prince among them. I the LORD have spoken.

" 'I will make a covenant of peace with them and rid the land of wild beasts so that they may live in the desert and sleep in the forests in safety. I will bless them and the places surrounding my hill. I will send down showers in season; there will be showers of blessing. The trees of the field will yield their fruit and the ground will yield its crops; the people will be secure in their land. They will know that I am the LORD, when I break the bars of their yoke and rescue them from the hands of those who enslaved them. They will no longer be plundered by the nations, nor will wild animals devour them. They will live in safety, and no one will make them afraid. I will provide for them a land renowned for its crops, and they will no longer be victims of famine in the land or bear the scorn of the nations. Then they will know that I, the LORD their God, am with them and that they, the house of Israel, are my people, declares the Sovereign LORD. You my sheep, the sheep of my pasture, are people, and I am your God, declares the Sovereign LORD.' "

Ezekiel 37:25-27

They will live in the land I gave to my servant Jacob, the land where your fathers lived. They and their children and their children's children will live there forever, and David my servant will be their prince forever. I will make a covenant of peace with them; it will be an everlasting covenant. I will establish them and increase their numbers, and I will put my sanctuary among them forever. My dwelling place will be with them; I will be their God, and they will be my people.

Matthew 26:27-29

Then he took the cup, gave thanks and offered it to them, saying, "Drink from it, all of you. This is my blood of the covenant, which is poured out for many for the forgiveness of sins. I tell you, I will not drink of this fruit of the vine from now on until that day when I drink it anew with you in my Father's kingdom."