21 They helped David against raiding bands, for all of them were brave warriors, and they were commanders in his army.

Read 1 Chronicles 12:21 Using Other Translations

And they helped David against the band of the rovers: for they were all mighty men of valour, and were captains in the host.
They helped David against the band of raiders, for they were all mighty men of valor and were commanders in the army.
They helped David chase down bands of raiders, for they were all brave and able warriors who became commanders in his army.