When Ahithophel saw that his advice had not been followed, he saddled his donkey and set out for his house in his hometown. He put his affairs in order and hanged himself. So he died and was buried in his father's tomb.

Matthew 27:5
So Judas threw the silver into the temple and left. Then he went away and hanged himself.

2 Samuel 15:12
While Absalom was offering the sacrifices, he sent for Ahithophel the Gilonite, David's counselor, to come from his hometown of Giloh. So the conspiracy gained strength, and Absalom's following kept increasing.

2 Samuel 15:31
Now someone told David: "Ahithophel is among the conspirators with Absalom." So David pleaded, "O LORD, please turn the counsel of Ahithophel into foolishness!"

2 Samuel 16:23
Now in those days the advice of Ahithophel was like the consultation of the word of God. Such was the regard that both David and Absalom had for Ahithophel's advice.

2 Samuel 17:22
So David and all the people with him got up and crossed the Jordan. By daybreak, there was no one left who had not crossed the Jordan.

1 Kings 16:18
When Zimri saw that the city was captured, he entered the citadel of the royal palace and burned it down upon himself. So he died

2 Kings 20:1
In those days Hezekiah became mortally ill. The prophet Isaiah son of Amoz came to him and said, "This is what the LORD says: 'Put your house in order, for you are about to die; you will not recover.'"

Isaiah 38:1
In those days Hezekiah became mortally ill. The prophet Isaiah son of Amoz came to him and said, "This is what the LORD says: 'Put your house in order, for you are about to die; you will not recover.'"

And when Ahithophel saw that his counsel was not followed, he saddled his ass, and arose, and got him home to his house, to his city, and put his household in order, and hanged himself, and died, and was buried in the sepulcher of his father.