Exodus 34:14 For thou shalt worship no other god: for the LORD, whose name is Jealous, is a jealous God:
Here the Lord is telling the children of Israel to not make covenants with the people of Canaan. God knew that if they became close to the Canaanites that it was just a matter of time before they would be serving the false gods of Canaan. The Lord is Jealous and not willing to share His worship with anyone else. God alone is worthy of worship and praise.
We should be careful that we also not worship other gods. We no longer make graven images like they did and so sometimes we may think that we are okay. But God doesn’t want to share His worship. We should be careful that we are only worshiping God and that no man or thing has taken some of that worship. We must be careful and take heed to guard our lives and hearts so that we worship God alone. For He is a Jealous God and worthy of all our worship and praise.