John Gill Commentary Deuteronomy 30:17

"But if thy heart turn away, and thou wilt not hear, but shalt be drawn away, and worship other gods, and serve them;" — Deuteronomy 30:17 (ASV)

But if your heart turn away
From the true God, and the right worship of him, and from his commands, statutes, and judgments:

so that you will not hear ;
the voice of the Lord and obey it, or hearken to his laws, and do them:

but shall be drawn away ;
by an evil heart, and by the ill examples of others:

and worship other gods and serve them ;
the gods of the Gentiles, the idols of the people, besides the one living and true God, the God of Israel.