No, He knows the flesh is weak and that is why He sends His Spirit of Truth to empower us, that we should not fail, that we should overcome the weakness.
“To he who overcomes”
“I can do ALL things through Christ who strengthens me”
And yes, should we stumble, we have Him as our advocate before the Father, however, stumbling is not something done on purpose, it is done out of weakness or ignorance and so when we have been made aware of that which we first tumbled, we should no longer stumble because we know how to traverse the path so not to stumble.
When we have been made aware of a commandment, and we understand what He says are the requirements of that commandment, if we break it, we do so by choice, not by weakness. And that is why James said this in Acts 15:
Act 15:21 "For from ancient generations Moses has, in every city, those proclaiming him - being read in the congregations every Sabbath." 22 Then it seemed good to the emissaries and elders, with all the assembly ...
Every Sabbath these new converts would hear Moses being read and so every week they would learn more about their contract with God and as they learned, they would apply what they learned. Moses is the school master, Christ is the Perfecter. We do not throw out what we learned from the school master, through the power of the Spirit of the Perfecter in us, we too can perfect that which Moses taught us.
Shalom
>> that is why He sends His Spirit of Truth to empower us,
If we ignore the spirit, get ensnared by the world, stumble into the nature of the Old Adam, and Repent for doing so, that’s covered by Grace — otherwise His sacrifice wouldn’t have been necessary.
Rom 3:23-31
23 for all have sinned and fall short of the glory of God, 24 and are justified freely by his grace through the redemption that came by Christ Jesus. 25 God presented him as a sacrifice of atonement, through faith in his blood. He did this to demonstrate his justice, because in his forbearance he had left the sins committed beforehand unpunished— 26 he did it to demonstrate his justice at the present time, so as to be just and the one who justifies those who have faith in Jesus.
27 Where, then, is boasting? It is excluded. On what principle? On that of observing the law? No, but on that of faith. 28 For we maintain that a man is justified by faith apart from observing the law. 29 Is God the God of Jews only? Is he not the God of Gentiles too? Yes, of Gentiles too, 30 since there is only one God, who will justify the circumcised by faith and the uncircumcised through that same faith. 31 Do we, then, nullify the law by this faith? Not at all! Rather, we uphold the law.
NIV