Genesis 7:6 KJV
And Noah was six hundred years old when the flood of waters was upon the earth.
Genesis 7:6, King James Version
In context
5 And Noah did according unto all that the Lord commanded him.
6 And Noah was six hundred years old when the flood of waters was upon the earth.
7 And Noah went in, and his sons, and his wife, and his sons’ wives with him, into the ark, because of the waters of the flood.