'God of Your Father' in the Bible

Now behold, God is with us at our head and His priests with the signal trumpets to sound the alarm against you. O sons of Israel, do not fight against the Lord God of your fathers, for you will not succeed.”

Then a letter came to him from Elijah the prophet saying, “Thus says the Lord God of your father David, ‘Because you have not walked in the ways of Jehoshaphat your father and the ways of Asa king of Judah,

But a prophet of the Lord was there, whose name was Oded; and he went out to meet the army which came to Samaria and said to them, “Behold, because the Lord, the God of your fathers, was angry with Judah, He has delivered them into your hand, and you have slain them in a rage which has even reached heaven.

Then he said to them, “Listen to me, O Levites. Consecrate yourselves now, and consecrate the house of the Lord, the God of your fathers, and carry the uncleanness out from the holy place.