Genesis 7:20

Overview - Genesis 7
Noah, with his family, and the living creatures, enter the ark, and the flood begins.
17 The increase and continuance of the flood for forty days.
21 All flesh is destroyed by it.
24 Its duration.
Treasury of Scripture Knowledge

Genesis 7:20  (King James Version)
Fifteen cubits upward did the waters prevail; and the mountains were covered.

and the mountains
Psalms 104:6 ; Jeremiah 3:23