2 Samuel 5:17-20

17And the Philistines heard that they had anointed David king over Israel, and all the Philistines went up to seek David; and David heard [of it], and went down to the stronghold.

18And the Philistines came and spread themselves in the valley of Rephaim.

19And David inquired of Jehovah, saying, Shall I go up against the Philistines? wilt thou give them into my hand? And Jehovah said to David, Go up; for I will certainly give the Philistines into thy hand.

20And David came to Baal-perazim, and David smote them there; and he said, Jehovah has broken in upon mine enemies before me, as the breaking forth of waters. Therefore he called the name of that place Baal-perazim.