Bible Verses About War: Frequently sore and bloody

Likewise all the men of Israel that had hid themselves in the hill-country of Ephraim, when they heard that the Philistines fled, even they also followed hard after them in the battle.

For there fell many slain, because the war was of God. And they dwelt in their stead until the captivity.

And Asa and the people that were with him pursued them unto Gerar: and there fell of the Ethiopians so many that they could not recover themselves; for they were destroyed before Jehovah, and before his host; and they carried away very much booty.

For Pekah the son of Remaliah slew in Judah a hundred and twenty thousand in one day, all of them valiant men; because they had forsaken Jehovah, the God of their fathers.