Deuteronomy 4:19 And lest thou lift up thine eyes unto heaven, and when thou seest the sun, and the moon, and the stars, even all the host of heaven, shouldest be driven to worship them, and serve them, which the LORD thy God hath divided unto all nations under the whole heaven.
We skipped the book of Leviticus and Numbers because the word worship was not found in those books. The word worship has at its root to bow. That word is found in Leviticus and Numbers but not as in bowing to worship God.
Here in this first verse in Deuteronomy, we find that God’s people are not to worship the stars and heavenly objects. They are to keep worship reserved for God. If God’s people forget Him and worship false gods, they will die.
Deuteronomy 8:19 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.
Wicked people and false gods would try to deceive God’s people and turn them from God to idols and demons.
Deuteronomy 11:16 Take heed to yourselves, that your heart be not deceived, and ye turn aside, and serve other gods, and worship them;
Deuteronomy 29:26 For they went and served other gods, and worshipped them, gods whom they knew not, and whom he had not given unto them:
This was a problem that had to be dealt with continually among God’s people.
Deuteronomy 17:3 And hath gone and served other gods, and worshipped them, either the sun, or moon, or any of the host of heaven, which I have not commanded;
Worship meant giving in the following verse. They were to bring the first and best of their harvest to God in recognition of Him and His power. Worship is giving to God in this verse.
Deuteronomy 26:10 And now, behold, I have brought the firstfruits of the land, which thou, O LORD, hast given me. And thou shalt set it before the LORD thy God, and worship before the LORD thy God:
God knew that if His people were to listen to lies and believe the lie, their hearts would be turned from Him to false gods. He knew they would end up serving false gods. They would no longer listen to God. Obviously, we have to be careful who we worship.
Deuteronomy 30:17 But if thine heart turn away, so that thou wilt not hear, but shalt be drawn away, and worship other gods, and serve them;