Genesis 8:3

Amplified Bible

and the waters receded steadily from the earth. At the end of a hundred and fifty days the waters had diminished.

Cross References

Genesis 7:11

In the six hundredth year of Noah’s life, on the seventeenth day of the second month, on that same day all the fountains of the great deep [subterranean waters] burst open, and the windows and floodgates of the heavens were opened.

Genesis 7:24

The waters covered [all of] the earth for a hundred and fifty days (five months).

Genesis 8:5

The waters continued to decrease until the tenth month; on the first day of the tenth month the tops of the mountains were seen.