Luke

And Samuel spake unto all the house of Israel, saying, If ye do return unto the Lord with all your hearts, then put away the strange gods and Ashtaroth from among you, and prepare your hearts unto the Lord, and serve him only: and he will deliver you out of the hand of the Philistines.

But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God.

Thou shalt fear the Lord thy God, and serve him, and shalt swear by his name.

Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.

Thou shalt fear the Lord thy God; him shalt thou serve, and to him shalt thou cleave, and swear by his name.