Abraham's Roots Traced Back to the Nephilim Giants
The Old Testament Pseudepigrapha by Charles H. Charlesworth
" In anonymous works, we find that Abraham traced his ancestory to the giants. These dwelt in the land of Babylonia. Because of their impiety, they were destroyed by the gods. One of them, Belos, escaped death and settled in Babylon. He built a tower and lived in it; the tower was called Belos, after its builder. After Abraham had learned astrology, he went to Phoenicia and taught it to the Phoenicians."