you see what we're saying is that's a pretty big IF there in Deut. 
and God certainly did magnify the Law for HIS righteousness' sake.
i hope you won't mind if i make an observation...(heard it from a pastor)
'most of us tend to base our relationship with God on our performance rather than His Grace.
if we've performed well, whatever well is in our opinion, then we expect God to bless us. if we haven't done so well, our expectations are reduced accordingly.
in this sense, we live by works rather than by grace. we are saved by grace, but we are living by the sweat of our own performance.
moreover, we are always challenging ourselves and one another to try harder.
we seem to believe success in the Christian life is basically up to us: our discipline, our commitment, our zeal, with some help from God along the way. 
the realization that my daily relationship with God is based on the infinite merit of Christ instead of my own performance is very freeing, and it is not meant to be a one time experience.'
My own performance is very freeing also. As I study, observe, and keep commandments of Torah, I thank Jesus everyday for wiping out my past sins, and my present weaknesses. The thing is I know where I fall short, I know what I must repent of, and I do have a heart to please.
Php_4:13 I can do all things through Christ which strengtheneth me.
Christ has strengthened me and does so on a daily basis. It makes praying without ceasing a reality. I am in constant communication with both God the Father and Y'shua (Yah's Salvation) the only Son of the Living God. Understanding that keeping His commandments are because I love Him and His commandments are not grievous. My life is blessed and peaceful. I have a mature faith, that completes me and strengthens my faith and thus strengthens my walk on His path which is well lighted with Instructions, clear and not muddled. His Word is perfect and does touch us like a double edged sword.
Eph_6:17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God:
The helmet of salvation is the head of my salvation, Y'shua Messiah, AND the sword of the Spirit IS the Word of God (which is the Law of Moses, the prophets and the NT writers, who are the transcribers of God's dictation.)
All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
That is what Torah is!! correction, protection, direction, instruction for living a Godly life through His precious grace of Salvation in the Messiah who fully preached how to correctly use the Torah. Who fully performed all the sacrifices for Ignorant Sin.
Paul said Heb_10:26 For IF we sin wilfully after that we have received the knowledge of the truth (Torah), there remaineth no more sacrifice for sins,
I admit, I have not fully learned the Torah, and I may still be doing things in my life that are wrong. I know in my heart that God hates us to mix the Godly with the pagan practices. For that reason, I dread the Christmas holidays. Christmas is to me, something I know I want have to be surrounded by in the Kingdom. I am single, and my family is in love with man made traditions and are not concerned if what they do pleases or does not please God. That is not where my heart is. I want to have a right heart (righteousness) to do things the way God asks us to do it and not add things in our lives that are not commanded by Him. Why? Because I fully trust His Ways are the right way to life everafter. If I ignored His Word here in this life, how can I expect to be in His Kingdom? The blood of Jesus is enough to wipe away my past sins, but it is not available for wilfully sinning.
Anyway, I do appreciate your kind and mature representation of your faith. Shalom.