1 Kings 18:21
"And Elijah came unto all the people, and said, How long halt ye between two opinions? if the LORD be God, follow him: but if Baal, then follow him. And the people answered him not a word."
Cross References (ranked by relevance)
No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
And if it seem evil unto you to serve the LORD, choose you this day whom ye will serve; whether the gods which your fathers served that were on the other side of the flood, or the gods of the Amorites, in whose land ye dwell: but as for me and my house, we will serve the LORD.
So these nations feared the LORD, and served their graven images, both their children, and their children’s children: as did their fathers, so do they unto this day.
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.
Unto thee it was shewed, that thou mightest know that the LORD he is God; there is none else beside him.
And them that worship the host of heaven upon the housetops; and them that worship and that swear by the LORD, and that swear by Malcham;
Know ye that the LORD he is God: it is he that hath made us, and not we ourselves; we are his people, and the sheep of his pasture.
And when all the people saw it, they fell on their faces: and they said, The LORD, he is the God; the LORD, he is the God.
And prayed unto him: and he was intreated of him, and heard his supplication, and brought him again to Jerusalem into his kingdom. Then Manasseh knew that the LORD he was God.
And Judah said, What shall we say unto my lord? what shall we speak? or how shall we clear ourselves? God hath found out the iniquity of thy servants: behold, we are my lord’s servants, both we, and he also with whom the cup is found.
Then Laban and Bethuel answered and said, The thing proceedeth from the LORD: we cannot speak unto thee bad or good.
And he saith unto him, Friend, how camest thou in hither not having a wedding garment? And he was speechless.
Master, which is the great commandment in the law?
And when it was day, he called unto him his disciples: and of them he chose twelve, whom also he named apostles;
And now, LORD, thou art God, and hast promised this goodness unto thy servant:
But when the Pharisees had heard that he had put the Sadducees to silence, they were gathered together.