Leviticus 26:14-15

But if you do not obey Me and do no (obediently) do all these commandments, if, instead, you reject My statutes, and if your soul rejects My ordinances, so that you will not (obediently) do all My commandments, and in this way break my covenants.

God is talking to His people here, warning them of what will happen when they break the covenant.  It is their choice what they want to do, but God gives a clear warning of the pitfalls of not being under His protection. We can all be deceived into following a path that is against the word of God.  However, we can always repent and get right back under the protection of God.  We choose the life we want with God.