'Ancestor' in the Bible

Also to Shem, the father of all the children of Eber [including the Hebrews], the older brother of Japheth, children were born.

The neighbor women gave him a name, saying, “A son (grandson) has been born to Naomi.” They named him Obed (worshiper). He is the father of Jesse, the father of David [the ancestor of Jesus Christ].

Obed the father of Jesse, and Jesse the father of David [the king of Israel and the ancestor of Jesus Christ].

For [most certainly] You are our Father, even though Abraham [our ancestor] does not know usAnd Israel does not acknowledge us.You, O Lord, are [still] our Father,Our Redeemer from everlasting is Your name.

We have lived only in tents, and have obeyed and done [everything] according to all that Jonadab our father commanded us.

Are You greater than our father Jacob, who gave us the well, and who used to drink from it himself, and his sons and his cattle also?”