Verses with the word wars in the Old Testament (9 verses):

Numbers 21:14
Wherefore it is said in the book of the wars of the LORD, What he did in the Red sea, and in the brooks of Arnon,

Judges 3:1
Now these are the nations which the LORD left, to prove Israel by them, even as many of Israel as had not known all the wars of Canaan;

2 Samuel 8:10
Then Toi sent Joram his son unto king David, to salute him, and to bless him, because he had fought against Hadadezer, and smitten him: for Hadadezer had wars with Toi. And Joram brought with him vessels of silver, and vessels of gold, and vessels of brass:

1 Kings 5:3
Thou knowest how that David my father could not build an house unto the name of the LORD his God for the wars which were about him on every side, until the LORD put them under the soles of his feet.

1 Chronicles 22:8
But the word of the LORD came to me, saying, Thou hast shed blood abundantly, and hast made great wars: thou shalt not build an house unto my name, because thou hast shed much blood upon the earth in my sight.

2 Chronicles 12:15
Now the acts of Rehoboam, first and last, are they not written in the book of Shemaiah the prophet, and of Iddo the seer concerning genealogies? And there were wars between Rehoboam and Jeroboam continually.

2 Chronicles 16:9
For the eyes of the LORD run to and fro throughout the whole earth, to shew himself strong in the behalf of them whose heart is perfect toward him. Herein thou hast done foolishly: therefore from henceforth thou shalt have wars.

2 Chronicles 27:7
Now the rest of the acts of Jotham, and all his wars, and his ways, lo, they are written in the book of the kings of Israel and Judah.

Psalms 46:9
He maketh wars to cease unto the end of the earth; he breaketh the bow, and cutteth the spear in sunder; he burneth the chariot in the fire.