'Descendants' in the Bible

This was John's testimony when the Jewish leaders sent priests and descendants of Levi to him from Jerusalem to ask him, "Who are you?"

Has not the scripture said that the Christ comes from the descendants of David, and from Bethlehem, the village where David was?"

“We are descendants of Abraham,” they answered Him, “and we have never been enslaved to anyone. How can You say, ‘You will become free’?”

I know you are descendants of Abraham, but you are trying to kill Me because My word is not welcome among you.