2 Samuel 16:20
Then said Absalom to Ahithophel, Give counsel among you what we shall do.
Nave's Topical Index—AKJV

2 Samuel 17:1-4,5-15
Moreover Ahithophel said to Absalom, Let me now choose out twelve thousand men, and I will arise and pursue after David this night:
Nave's Topical Index—AKJV