2nd Samuel 15:37

31 And word came to David, saying, Ahithophel is among those who are joined to Absalom. And David said, O Lord, let the wisdom of Ahithophel be made foolish.

32 Now when David had come to the top of the slope, where they gave worship to God, Hushai the Archite came to him in great grief with dust on his head:

33 David said to him, If you go on with me, you will be a trouble to me:

34 But if you go back to the town and say to Absalom, I will be your servant, O king; as in the past I have been your father's servant, so now I will be yours: then you will be able to keep Ahithophel's designs against me from being put into effect.

35 And have you not there Zadok and Abiathar the priests? so whatever comes to your ears from the king's house, give word of it to Zadok and Abiathar the priests.

36 See, they have with them their two sons, Ahimaaz, Zadok's son, and Jonathan, the son of Abiathar; by them you may send word to me of everything which comes to your ears.

37 So Hushai, David's friend, went into the town, and Absalom came to Jerusalem.