We all make promises of various sorts to other people. Sometimes we might need or want a reminder of what we have promised, or we give the other person, the one the promise was made to, a reminder that we have given them our word. In our Scripture today we read of a solemn promise, or covenant as the Bible calls it, that God made with mankind, along with the sign or reminder that was also given.
In the Bible, there are two types of promises that God makes - conditional and unconditional. Conditional promises are ones that if we do something, or if we obey what God said, then He will fulfill His part of the promise. Some examples are: “If we confess our sins, He is faithful and just to forgive us our sins, and cleanse us from all unrighteousness.” (I John 1:9). And “If you abide in Me, and My words abide in you, you shall ask what you desire, and it shall be done for you.” (John 15:7). Unconditional promises are ones where God has given His word, and we don’t have to do, or not do, anything to receive it. The promise God made to Christians, “I will never leave you nor forsake you.” (Hebrews 13:5) is one example. Today’s Scripture passage gives another unconditional covenantal promise.
Beginning in Genesis chapter 6 on through chapter 8 we read of God’s judgment of mankind’s sin by sending a world-wide flood that destroyed everything living, except for Noah and his family, along with a pair of each animal. Now that the flood waters have receded, and everyone departed from the ark, God made an everlasting covenant with man, and with all the animals that had been on the ark. This was a unilateral, unconditional promise grounded in His mercy, not in any human merit. God did not require Noah or any of his descendants to promise anything in return. God bound Himself. There are no conditions, no stipulations, no “if you obey.” This covenant rests entirely on God’s character.
What was this covenant promise? We read it in verse 11. God promised that He would never again destroy the whole earth, nor all living creatures (all flesh) with a flood. This does not mean that there will be no local floods, as we see that in various places quite frequently. And unfortunately there is sometimes loss of life then, as well. However God promised that He would not destroy the whole earth, destroying all life, with another flood. God ensured the world would remain intact until His redemptive plan is fulfilled.
Next, the Lord God gave man a sign that He would keep this covenant with them, and that is the sign of the rainbow (vs. 12-16). People today have taken the rainbow and made it mean other things, but God gave the rainbow to be a sign in the sky that He would never flood the whole earth again. The Hebrew word used is “qeset”, which is a bow used by archers for hunting or for war. God hangs up His bow in the sky. His weapon of judgment is set aside, with the bow pointing upwards towards heaven, not earth. It is a symbol of peace.
The rainbow is not just a reminder for mankind. God said that He will look upon it and remember His covenant. That is not because if He doesn’t see it He will forget. It means that the rainbow in the sky after a rain storm is a public, visible testimony of His faithfulness. The rainbow is an eternal sign of God’s faithfulness. It shows Him as a God who keeps His promises. Even after judgment, the Lord God binds Himself to mercy.
The rainbow also shows us that God is sovereign over all of creation. He is the one who controls the weather, along with the changing seasons, and the stability of the whole earth. When we see a rainbow, it is a testament to God’s ongoing governance of all of creation.
In closing, we read in the Bible of how God sent the Flood because of mankind’s wickedness. The Flood was judgment for sin. This unconditional promise, this covenant that God made with man, shows that we have a merciful and compassionate God, and His rainbow is a symbol of His mercy. Since God keeps His covenant with the whole earth, He will keep His promises to His children. Every rainbow is a sermon in the sky, reminding us that God is patient, faithful, and merciful.