1 Chronicles 12:1 - Joseph Benson’s Commentary on the Old and New Testaments

Now these are they that came to David, &c. This author thought fit to do those the honour of having their names recorded, (which was omitted in the book of Samuel,) who came and joined themselves to him when he was in exile; and were afterward great assistants to him in his wars. While he kept himself close Or was shut out from his own land and people: for the writer speaks not of that time when he was shut up, and hid himself in caves in the land of Judah, but when he was at Ziklag.