Deuteronomy 16:3

16:3 You must not eat any yeast with it; for seven days you must eat bread made without yeast, symbolic of affliction, for you came out of Egypt hurriedly. You must do this so you will remember for the rest of your life the day you came out of the land of Egypt.

Deuteronomy 30:20

30:20 I also call on you to love the Lord your God, to obey him and be loyal to him, for he gives you life and enables you to live continually in the land the Lord promised to give to your ancestors Abraham, Isaac, and Jacob.”