'Units' in the Bible

So Abimelech and all the people with him got up at night and waited in ambush for Shechem in four units.

Then Abimelech and the units that were with him rushed forward and took their stand at the entrance of the city gate. The other two units rushed against all who were in the countryside and struck them down.

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.

Some time later, King Ben-hadad of Aram brought all his military units together and marched up to besiege Samaria.

Now there was a wall surrounding the outside of the temple. The measuring rod in the man’s hand was six units of 21 inches; each unit was the standard length plus three inches. He measured the thickness of the wall structure; it was about 10 feet, and its height was the same.

“These are the measurements of the altar in units of length (each unit being the standard length plus three inches): the gutter is 21 inches deep and 21 inches wide, with a rim of nine inches around its edge. This is the base of the altar.