Genesis 6:1 KJV

And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,
Genesis 6:1, King James Version

In context

1 And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,

2 That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.