A Giant Problem
You don't have to believe that Angels had sexual relations with women when the sons of God took wives from daughters of men and had children with them but God did flood the world after this. Below is the following texts we used as we explored the second rebellion in Genesis 6:1-4
Genesis 5:29. Early Creation after the fall was looking for one to give them rest.
Isaiah 14:13-14 There is a strange taunt against the king of Babylon but it's an ancient time where this one looks to be "like the Most high". There has been a coup from a rebellious spiritual realm bent on destroying humankind.
The Text: Genesis 6:1-4
Supporting Text: Job 1:6, 2:1, 38:7; Deuteronomy 32:8; Psalm 29:1, 89:6, 82:1-4; Jude 1:6; Numbers 13:32–33; Deuteronomy 3:3–4,11; 2 Peter 2:1–4 ; Jude 1:14–15, Jude 1:16; Genesis 6:5–6; 2 Corinthians 10:3–5
These texts will hopefully help you navigate through the idea that the sons of God were spiritual beings that rebelled and did what was evil with human women. They created a race of giants that plagued Israel through out the Old Testament. The wars to obtain the promise land was hindered by these giant clans but not their size, their immoral and idolatrous culture that corrupted Israel. We fight the same corruption today.