'Whose' in the Bible

then hear from heaven, Your dwelling place, and forgive, and render to each in accordance with all his ways, whose heart You know; for You alone know the hearts of the sons of men,

Rehoboam took as his wife Mahalath, the daughter of Jerimoth the son of David, and of Abihail the daughter of Eliab the son of Jesse.

For the eyes of the Lord move to and fro throughout the earth so that He may support those whose heart is completely His. You have acted foolishly in this; therefore, from now on you will have wars.”

But a prophet of the Lord was there, whose name was Oded; and he went out to meet the army that was returning to Samaria and said to them, “Behold, because the Lord, the God of your fathers, was angry with Judah, He handed them over to you; but you have killed them in a rage that has reached as far as heaven.