'Life' in the Bible

Then the Lord said to Moses in Midian, “Go back to Egypt, for all the men who were seeking your life [for killing the Egyptian] are dead.”

Then Zipporah took a flint knife and cut off the foreskin of her son and threw it at Moses’ feet, and said, “Indeed you are a husband of blood to me!”

then his master shall bring him to God [that is, to the judges who act in God’s name], then he shall bring him to the door or doorpost. And his master shall pierce his ear with an awl (strong needle); and he shall serve him for life.

But if there is any further injury, then you shall require [as a penalty] life for life,

If a ransom is demanded of him [in return for his life], then he shall give whatever is demanded for the redemption of his life.