Never again will I curse the ground because of humans, even though every inclination of the human heart is evil

 Genesis 8:1-22

But God remembered Noah and all the wild animals and the livestock that were with him in the ark, and he sent a wind over the earth, and the waters receded.

At the end of the hundred and fifty days the water had gone down, and on the seventeenth day of the seventh month the ark came to rest on the mountains of Ararat. 150 days is the same as the waters flooding the earth for 150 days.

After forty days Noah opened a window he had made in the ark and sent out a raven, and it kept flying back and forth until the water had dried up from the earth. He waited seven more days and again sent out the dove from the ark. When the dove returned to him in the evening, there in its beak was a freshly plucked olive leaf! Then Noah knew that the water had receded from the earth. He waited seven more days and sent the dove out again, but this time it did not return to him.

By the twenty-seventh day of the second month the earth was completely dry.

Then Noah built an altar to the Lord and, taking some of all the clean animals and clean birds, he sacrificed burnt offerings on it. The Lord smelled the pleasing aroma and said in his heart: “Never again will I curse the ground because of humans, even though every inclination of the human heart is evil from childhood. And never again will I destroy all living creatures, as I have done.

Why?

The flooding and waiting until the surface is dry is about one year, 150+150+40+15+15=370 days.

The Lord knew even after flooding the human heart is evil from childhood. But for the mercy of the Lord, God won't destroy all the living creatures.

God gives us many chances to return to the Lord, for God is love.

How?

Even if there is not flooding, at the end of the world, there is a judgment all of us have to face it.