"This is a video explaining whether or not the Egyptian pyramids were built before the flood of Noah's day. It also deals with issues with the accuracy of the Hebrew Masoretic text verses the Greek Septuagint, the Dead Sea Scrolls, the Tower of Babel, the age of the Earth, an extra Cainan in Jesus' genealogy, and the identity of Melchizedek - not in that particular order.
The Jews distorted their own Bible in their attempt to disprove Christianity. But it really just made their own religion look stupid. So now it appears that the pyramids were built before the flood, that there wasn't enough time for the Tower of Babel event to have taken place, and that Shem outlived all his sons and grandsons. But thankfully God has preserved His Words in the Greek Septuagint, which was considered the Christian Bible in the days of the early church..."
Something important that the video left out however is this:
Mary was from both lines, being from Judah and Aaron - Levi.
David married Bathsheba and she was a Levite.
(So, Jesus was therefore eligible to become both King and High Priest.)