'Ancestor' in the Bible

The border of the descendants of Dan continued {beyond them}, because the descendants of Dan went up and fought with Lesham, and they captured and struck it with {the edge of the sword}, and they took possession of it and settled in it; and they called Leshem Dan, after the name of Dan their ancestor.

I took your ancestor Abraham from beyond the river and led him through all the land of Canaan, and I increased his offspring; I gave him Isaac,