Deuteronomy 4:1 (ESV)

1 “And now, O Israel, listen to the statutes and the rules that I am teaching you, and do them, that you may live, and go in and take possession of the land that the LORD, the God of your fathers, is giving you.

Moses now shifts to the current setting, and calls for attentiveness to the commands and laws of the Lord, which form the basis of the covenant relationship. In that sense, possession of the Promised Land is dependent on obedience to the law.