They helped David against the band, &c. Against the Amalekites, who had taken and burned Ziklag, and whom David and his six hundred men were now pursuing. Or, as in the margin, with a band, or troop of soldiers, which they brought along with them to David's assistance. They were all mighty men of valour Therefore they readily came to David's help. At that time, day by day While David was at Ziklag, and in his march to Hebron, and principally at Hebron. There came to David like the host of God An innumerable multitude, like the stars or angels of God, both which are called God's host.
Related Commentaries of 1 Chronicles 12:21
1 Chronicles 12:21-22
21 And they helped David against the band of the rovers: for they were all mighty men of valour, and were captains in the host.
22 For at that time day by day there came to David to help him, until it was a great host, like the host of God.