'Perish' in the Bible

But if ye do wickedly, ye shall perish, both ye and your king.

And David said, As Jehovah liveth, Jehovah will surely smite him; either his day shall come to die, or he shall descend into battle and perish.

And David said in his heart, I shall now perish one day by the hand of Saul: there is nothing better for me than that I should speedily escape into the land of the Philistines; and Saul will despair of me to seek me any more within all the limits of Israel, and I shall escape out of his hand.