'Friend' in the Bible

But Amnon had a friend, whose name was Jonadab, the son of Shimeah, David's brother; and Jonadab was a very subtle man.

So Hushai, David's friend, came into the city; and Absalom came into Jerusalem.

And it came to pass, when Hushai the Archite, David's friend, was come unto Absalom, that Hushai said unto Absalom, Long live the king, Long live the king.

And Absalom said to Hushai, Is this thy kindness to thy friend? why wentest thou not with thy friend?