'Ancestors' in the Bible

But they were unfaithful to the God of their ancestors. They prostituted themselves with the gods of the nations God had destroyed before them.

The sons of Merari: Mahli and Mushi. Now these [are] the families of the Levites according to their ancestors.

Shallum son of Kore, son of Ebiasaph, son of Korah and his relatives from his ancestral household, the Korahites, were assigned to guard the thresholds of the tent. Their ancestors had been assigned to the Lord’s camp as guardians of the entrance.

David went out to meet them and said to them, “If you have come in peace to help me, my heart will be united with you, but if you have come to betray me to my enemies even though my hands have done no wrong, may the God of our ancestors look on it and judge.”

"""I'm also announcing to you that the LORD also will himself build a house for you. It will come about that when your life is complete and you go to join your ancestors, I will raise up your offspring after you, who is related to one of your sons, and I will fortify his kingdom.

From the Hebronites: Jerijah was the head of the Hebronites, according to the genealogical records of his ancestors. A search was made in the fortieth year of David’s reign and strong, capable men were found among them at Jazer in Gilead.

For we live before You as foreigners and temporary residents in Your presence as were all our ancestors. Our days on earth are like a shadow, without hope.

Lord God of Abraham, Isaac, and Israel, our ancestors, keep this desire forever in the thoughts of the hearts of Your people, and confirm their hearts toward You.

Then David said to the whole assembly, “Praise the Lord your God.” So the whole assembly praised the Lord God of their ancestors. They bowed down and paid homage to the Lord and the king.