There fell. —The regular term for desertion of one cause for another (2 Kings 25:11).

When he came with the Philist…

And there fell some of Manasseh to David
Of the tribe of Manasseh; they took his part, and on his side, and joined h…

Here is an account of those who appeared and acted as David's friends while he was persecuted. No difficulties or dangers should keep the sinner fr…