1 Chronicles 27:33

and Ahithophel is counsellor to the king; and Hushai the Archite is the friend of the king;

2 Samuel 15:12

and Absalom sendeth Ahithophel the Gilonite, a counsellor of David, out of his city, out of Gilo, in his sacrificing sacrifices; and the conspiracy is strong, and the people are going and increasing with Absalom.

2 Samuel 15:37

And Hushai, David's friend, cometh in to the city, and Absalom cometh in to Jerusalem.

2 Samuel 15:32

And it cometh to pass, David hath come unto the top, where he boweth himself to God, and lo, to meet him is Hushai the Archite, his coat rent, and earth on his head;

2 Samuel 16:16-17

and it cometh to pass, when Hushai the Archite, David's friend, hath come unto Absalom, that Hushai saith unto Absalom, 'Let the king live! let the king live!'

2 Samuel 16:23

And the counsel of Ahithophel which he counselled in those days is as when one inquireth at the word of God; so is all the counsel of Ahithophel both to David and to Absalom.

2 Samuel 17:23

And Ahithophel hath seen that his counsel was not done, and he saddleth the ass, and riseth and goeth unto his house, unto his city, and giveth charge unto his household, and strangleth himself, and dieth, and he is buried in the burying-place of his father.

Psalm 55:13

But thou, a man -- as mine equal, My familiar friend, and mine acquaintance.

Zechariah 13:7

Sword, awake against My shepherd, And against a hero -- My fellow, An affirmation of Jehovah of Hosts. Smite the shepherd, and scattered is the flock, And I have put back My hand on the little ones.

Treasury of Scripture Knowledge

Summary

And Ahithophel was the king's counseller: and Hushai the Archite was the king's companion:

Bible References

Ahithophel

2 Samuel 15:12
and Absalom sendeth Ahithophel the Gilonite, a counsellor of David, out of his city, out of Gilo, in his sacrificing sacrifices; and the conspiracy is strong, and the people are going and increasing with Absalom.
2 Samuel 16:23
And the counsel of Ahithophel which he counselled in those days is as when one inquireth at the word of God; so is all the counsel of Ahithophel both to David and to Absalom.
2 Samuel 17:23
And Ahithophel hath seen that his counsel was not done, and he saddleth the ass, and riseth and goeth unto his house, unto his city, and giveth charge unto his household, and strangleth himself, and dieth, and he is buried in the burying-place of his father.

Hushai

2 Samuel 15:32
And it cometh to pass, David hath come unto the top, where he boweth himself to God, and lo, to meet him is Hushai the Archite, his coat rent, and earth on his head;
2 Samuel 16:16
and it cometh to pass, when Hushai the Archite, David's friend, hath come unto Absalom, that Hushai saith unto Absalom, 'Let the king live! let the king live!'

Companion

2 Samuel 16:17
And Absalom saith unto Hushai, 'This thy kindness with thy friend! why hast thou not gone with thy friend?'
Psalm 55:13
But thou, a man -- as mine equal, My familiar friend, and mine acquaintance.
Zechariah 13:7
Sword, awake against My shepherd, And against a hero -- My fellow, An affirmation of Jehovah of Hosts. Smite the shepherd, and scattered is the flock, And I have put back My hand on the little ones.