'During' in the Bible

The next day Saul organized the troops into three divisions. During the morning watch, they invaded the Ammonite camp and slaughtered them until the heat of the day. There were survivors, but they were so scattered that no two of them were left together.

Now David was the son of the Ephrathite from Bethlehem of Judah named Jesse. Jesse had eight sons and during Saul’s reign was already an old man.

But Achish’s servants said to him, “Isn’t this David, the king of the land? Don’t they sing about him during their dances:Saul has killed his thousands,but David his tens of thousands?”

David did not let a man or woman live to be brought to Gath, for he said, “Or they will inform on us and say, ‘This is what David did.’” This was David’s custom during the whole time he stayed in the Philistine territory.

The Philistine commanders, however, were enraged with Achish and told him, “Send that man back and let him return to the place you assigned him. He must not go down with us into battle only to become our adversary during the battle. What better way could he regain his master’s favor than with the heads of our men?

Isn’t this the David they sing about during their dances:Saul has killed his thousands,but David his tens of thousands?”