'Units' in the Bible

At that time, the Philistines brought their military units together into one army to fight against Israel. So Achish said to David, “You know, of course, that you and your men must march out in the army with me.”

The Philistines brought all their military units together at Aphek while Israel was camped by the spring in Jezreel.

As the Philistine leaders were passing in review with their units of hundreds and thousands, David and his men were passing in review behind them with Achish.