2 Samuel 13:3

(3) But Amnon had a friend, whose name was Jonadab, the son of Shimeah David's brother: and Jonadab was a very subtil man.

What an awful thing it is to have, in what the world calls a friend, the worst of all enemies. Here is a subtle, ill-designing man, acting as an agent for Satan, and covering it under the mask of friendship. Reader! there is a friend I would earnestly recommend to you whose very wounds are faithful, who loveth at all times, and sticketh closer than a brother. Who can this be but Jesus? Concerning other friends I recommend nothing, unless it be caution in the choice of them. But if you make Jesus your friend, he will insure your choice in all others. See Proverbs 27:6; Proverbs 27:6.