Genesis 6:2

² The sons of God saw that the daughters of men were fair; and they took wives for themselves from those who were pleasing to them.

Strengthened

To 'be strengthened,' as in Genesis 21:18, signifies being supported.

In Isaiah 41:10, this signifies to give power and intelligence from the omnipotence and omniscience of the Divine Good and Truth. (Apocalypse Explained 298[10])

¹ Awake, Awake, put on your strength, Zion; put on your beautiful garments, Jerusalem, the holy city: for henceforth there shall no more come into you the uncircumcised and the unclean.