The law of God existed before man was created. After Adam and Eve sinned this law was arranged and expressed in such a way as to meet man in his fallen condition. Christ gave to Moses religious precepts that were to govern everyday life. History reveals that believers in Christ tried to keep the Ten Commandments in their own strength, unsuccessfully. Have you struggled in this area? We simply can't do this ourselves. Only through the merits of Christ and allowing Him to dwell in us through the Holy Spirit can we succeed. Trying to keep the law in our own strength is called legalism. Legalism will save no one. Is it helpful for us to add commandments to those already in place, in order to help ourselves keep them? No, adding to them does not give us any more power to keep them. So, why do we need the Ten Commandments? We need them so we will see our true condition. In seeing them we realize that our lives are far from what they need to be in order to live in the presence of a holy God. We know that Christ's followers will be keeping all of the Ten Commandments at the Second Coming
So, how on earth do we do this? We can't keep the law in our own strength. This is the problem. We can't keep it. But we must, and how many of us like to acknowledge that there's something we can't do? So we try and fail miserably. So, what is the solution?
Jesus came here and lived as a man and kept the law perfectly. In His own strength? No, but through the power of the Holy Spirit dwelling in Him.
Allow me to ask you a question. If the Holy Spirit is controlling me, can I sin? How only can I sin? Only by taking control back. The Holy Spirit will never cause me to sin. That is why John said in 1 John 3:9 "Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God." It is impossible for someone to sin while the seed (Holy Spirit) is in him (in control) because the Holy Spirit will never cause anyone to sin. Then this is key in understanding the way we will succeed in keeping God's Ten Commandments. Anything short of this is futile.
So, what is the Law for? It is God's will for us, not to discourage us with what WE alone must do, but what we may do as Christ works in and through us. We are to look at the Law to see God's standard. It is high and we are insufficient without the power of God, through Christ. If we see we're not keeping it, then we need to more fully surrender, because His Holy Spirit is promised as we humble ourselves before Him.
"The law is not to be looked upon as much from the prohibitory side as from the mercy side. Its prohibitions are the sure guarantee of happiness in obedience. As received in Christ, it works in us the purity of character that will bring joy to us through eternal ages. To the obedient it is a wall of protection. We behold in it the goodness of God…who seeks to shield them from the evils that result from transgression. The law is an expression of God's idea. When we receive it in Christ, it becomes our idea. It lifts us above the power of natural desires and tendencies, above temptations that lead to sin."
In conclusion, the Law is not for me to see how "I" am doing. It is to indicate whether I am totally submitted and surrendered to God, allowing the Holy Spirit to work it out in me.
2 Timothy 2:15