Look! I am presenting you today with, on the one hand, life and good; and on the other, death and evil — in that I am ordering you today to love Adonai your God, to follow his ways, and to obey his mitzvot, regulations and rulings ; for if you do, you will live and increase your numbers; and Adonai your God will bless you in the land you are entering in order to take possession of it. ~~ Deuteronomy 30: 15-16
Here is a great analysis of the importance and meaning of these verses:
Therefore says verse 15, here is the summation of all that Torah is about: on the one hand life and prosperity, and on the other death and adversity. Life and prosperity equals the blessing of the Law; death and adversity equals the curse of the Law.
But (and here is the secret to living the Torah life as God intends), there are 3 ingredients necessary to maintain our relationship with the Lord. Verse 16 says these 3 ingredients are: 1) Love your God, 2) walk in His ways, and 3) keep His commandments.
Allow me to paraphrase this in more modern terms: 1) trust God (and of course that means trusting His Messiah), 2) live your life according to Biblical principles, and 3) obey the Torah. Trust, live, obey. To obey the commandments without trusting God is worthless. To trust God but to be disobedient is a fruitless life. To observe the Biblical commandments but not to trust God (have a personal relationship with Him) relegates us to permanent separation from Him.
~~ Tom Bradford, TorahClass.com