With Noah God made a covenant not to flood the earth again and created the rainbow and as soon as Noah came off the ark he made an altar and offered a sacrifice unto the Lord.
With Abraham, in Genesis 15, He made covenant with him and had Abraham cut animals in two and God walked through the middle of them.
Christ is the New Covenant. He shed His blood to make covenant with us. Covenant is a very serious matter that we all too often take lightly. We hear the word covenant and think nothing of it. Covenant was held very sacred in the biblical days and by God the Father and Jesus. We too must begin to learn more about covenant, and what it means, and why we must stand by our commitments.
Although we do not build altars to remind us about covenant, we do take communion and Christ said in:
1 Corinthians 11:25, “This cup is the new covenant in My blood. This do, as often as you drink it, in remembrance of Me.”
Taking communion is a part of covenant. The juice represents His blood. Jesus' blood that was shed for us so that we can walk through the veil that was torn in two, and enter the Holy of Holies, and have communion with our Heavenly Father.
Take a moment today and remember a promise, or a commitment, you have made to the Lord, and ask yourself if you have stood by it. If so, thank Him for His grace. If not, thank Him for His mercy and make a new covenant with your Father.