1. Yahweh:
Exodus 20:2-3 KJV I am the LORD thy God, which have brought thee out of the land of Egypt, out of the house of bondage. Thou shalt have no other gods before me.
Deuteronomy 5:7 Thou shalt have no other gods before Me.
2. Jesus:
Luke 4:8 KJV – And Jesus answered and said unto him, Get thee behind me, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.
Matthew 4:10 KJV – 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.
3. Yahweh: Do not say their names
Exodus 23:13 NKJV – 13 “And in all that I have said to you, be circumspect and make no mention of the name of other gods, nor let it be heard from your mouth.
4. Make no Covenant [contract] or Marry those who put gods before Yahweh
Deuteronomy 7:1-5 KJV
“When the LORD thy God shall bring thee into the land whither thou goest to possess it, and hath cast out many nations before thee, the Hittites, and the Girgashites, and the Amorites, and the Canaanites, and the Perizzites, and the Hivites, and the Jebusites, seven nations greater and mightier than thou;
And when the LORD thy God shall deliver them before thee; thou shalt smite them, and utterly destroy them; thou shalt make no covenant with them, nor shew mercy unto them:
Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.
For they will turn away thy son from following me, that they may serve other gods: so will the anger of the LORD be kindled against you, and destroy thee suddenly.
But thus shall ye deal with them; ye shall destroy their altars, and break down their images, and cut down their groves, and burn their graven images with fire.”
5. Judgement:
Deuteronomy 8:19 KJV – 19 And it shall be, if thou do at all forget the LORD thy God, and walk after other gods, and serve them, and worship them, I testify against you this day that ye shall surely perish.Deuteronomy 18:20 KJV – 20 But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.
Deuteronomy 11:16-17 KJV – 16 Take heed to yourselves, that your heart be not deceived, and ye turn aside, and serve other gods, and worship them; 17 And then the LORD’S wrath be kindled against you, and he shut up the heaven, that there be no rain, and that the land yield not her fruit; and lest ye perish quickly from off the good land which the LORD giveth you.
Deuteronomy 18:20 KJV – 20 But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.
Deuteronomy 31:18 KJV – 18 And I will surely hide my face in that day for all the evils which they shall have wrought, in that they are turned unto other gods.