11 Surely, this commandment that I am commanding you today is not too hard for you, nor is it too far away.12 It is not in heaven, that you should say, "Who will go up to heaven for us, and get it for us so that we may hear it and observe it?" 13 Neither is it beyond the sea, that you should say, "Who will cross to the other side of the sea for us, and get it for us so that we may hear it and observe it?" 14 No, the word is very near to you; it is in your mouth and in your heart for you to observe.
15 See, I have set before you today life and prosperity, death and adversity. 16 If you obey the commandments of the LORD your God that I am commanding you today, by loving the LORD your God, walking in his ways, and observing his commandments, decrees, and ordinances, then you shall live and become numerous, and the LORD your God will bless you in the land that you are entering to possess. 17 But if your heart turns away and you do not hear, but are led astray to bow down to other gods and serve them, 18 I declare to you today that you shall perish; you shall not live long in the land that you are crossing the Jordan to enter and possess. 19 I call heaven and earth to witness against you today that I have set before you life and death, blessings and curses. Choose life so that you and your descendants may live, 20 loving the LORD your God, obeying him, and holding fast to him; for that means life to you and length of days, so that you may live in the land that the LORD swore to give to your ancestors, to Abraham, to Isaac, and to Jacob.
The two basic, valid logical forms for propositions are called modus ponens and modus tollens -- the mode of affirming and the mode of denying, respectively.
P --> Q; P; then Q. P --> Q; not Q; then not P. Read, "If P, then Q." Affirm P, then Q follows. This is modus ponens.
YHWH speaks in this passage in the form of propositional logic. "If you obey... love the Lord ... walk in his ways, then you shall live and become numerous."
"If your hearts turns away and you do not hear ... [then] I declare to you today that you shall perish..."
Two sets -- opposing sets -- for P and Q. We can call this by another name: the law of consequences. It's all around us in life.
If you eat late at night, then you will gain weight. If you gain weight, then your clothes won't fit. If your clothes don't fit, then you'll need to buy new clothes. If you buy new clothes, you won't have the money to spend on something else, like food for late night snacking. If you don't have money for late night snacking, then you won't eat late at night. If you don't eat late at night, you'll lose the weight that you would have gained had you eaten late at night. If you lose weight, then you'll spend money buying back skinnier clothes which you should have kept in the first place when you ended up chucking them because you thought you'll never go back to the skinny weight when you first gained weight from eating late at night. Basically, If you eat late at night, you'll go broke. See what I mean? Law of consequences.
From trivial to serious are the laws of life consequences. If you love God and follow him, you got nothing really to lose and everything to gain. If you follow things other than God, then you got a lot to lose that's truly important (God) and what little you gain isn't much anyway.
Think about this today.
Let's pray: Father God, help us to see with clarity the consequences of following after you versus following after other things. In Jesus' name, amen.