Genesis 8:1 & 2
"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. Now the springs of the deep and the floodgates of the heavens had been closed, and the rain had stopped falling from the sky." NIV translation
As we saw in chapter 7, the flood waters covered the earth for one hundred fifty days. After forty days, God shut off the water but it took quite a bit of time for the waters to go down. If it had not been for God's love, He could have simply let the waters continue to cover the earth but He remembered Noah and the animals that He had created. It is this love that brought an end to the judgment that was upon the earth and it is this same love that brings our salvation.