Read the books by Zecharia Sitchin they are fascinating. He probably isn't right about everything but he's on to something and the sumerian texts are a vital part of his theory.
Is the bible plaigiarized from Sumerian/Egyptian texts?
I highly recommend this book:
Deceptions and Myths of the Bible by Lloyd M. Graham
"The Bible is not 'the word of God,' but stolen from pagan sources. Its Eden, Adam and Eve were taken from the Babylonian account; its Flood or Deluge is but an epitome of some four hundred flood accounts; its Ark and Ararat have their equivalents in a score of Deluge myths; even the names of Noah's sons are copies, so also Isaac's sacrifice, Solomon's judgement, and Samson's pillar act; its Moses is fashioned after the Syrian Mises; its laws after Hammurabi's code. Its Messiah is derived from the Egyptian Mahdi, Savior, certain verses are verbatim copies of Egyptian scriptures. Between Jesus and the Egyptian Horus, Gerald Massey found 137 similarities, and those between Christ and Krishna run into the hundreds. How then can the Bible be a revelation to the Jews?"