'Lives' in the Bible

Saying, By my God, far be it from me to do this! How may I take as drink the life-blood of these men who have put their lives in danger? so he did not take it. These things did the three great men of war.

And some of the men of Manasseh came over to David, when he went with the Philistines to the war against Saul, but he gave them no help: for the lords of the Philistines, after discussion, sent him away, saying, He will go back to his master Saul, at the price of our lives.

But the word of the Lord came to me saying, You have taken lives without number and made great wars; I will not let you be the builder of a house for my name, because of the lives you have taken on the earth before my eyes.