'Friend' in the Bible

And Amnon hath a friend, and his name is Jonadab, son of Shimeah, David's brother, and Jonadab is a very wise man,

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

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!'

And Absalom saith unto Hushai, 'This thy kindness with thy friend! why hast thou not gone with thy friend?'