'Fight' in the Bible

Take courage and be men, [you] Philistines, lest you end up serving the Hebrews just like they have served you. Be men and fight!"

so that we {also} may be like all the nations, and our king may rule us and go out before us and fight our battles."

And the Philistines assembled to fight with Israel, thirty thousand chariots and six thousand horsemen and an army as numerous as sand which [is] on the seashore. And they came up and encamped at Micmash, east of Beth Aven.

When Yahweh sent you on your way, he said to you: 'Go! You must utterly destroy the sinners, [the] Amalekites, and you must fight against them until you have destroyed them.'

If he [is] able to fight with me and he defeats me, then we will be your servants; but if I prevail over him and defeat him, then you will be our servants and you will serve us."

Then the Philistine said, "I hereby defy the battle lines of Israel today! Give me a man so that we may fight each other!"

David said to Saul, "Do not let anyone's heart fail concerning him! Your servant will go and fight with this Philistine."

But Saul said to David, "You will not be able to go against this Philistine to fight with him, because you are [only] a boy, whereas [he has] been a man of war since his childhood!"

Then Saul said to David, "Here [is] my older daughter Merab. I will give her to you as [your] wife. Only be {a brave warrior} for me and fight the battles of Yahweh." For Saul thought, "My hand will not be against him, but let the hand of [the] Philistines be against him."

{Now} in those days [the] Philistines gathered their forces for war to fight against Israel. So Achish said to David, "Certainly you realize that you must go out with me in the army, you and your men."

Then David said to Achish, "But what have I done? And what have you found in your servant from the day that I {entered your service} until this day, that I should not go and fight against the enemies of my lord the king?"