Yes a agree you are very confused. Please let me show one thing.
We all know that the high priest’s will was to have Jesus put to death by execution, for we read in John 11:48-50: “’If we let Him go on like this, all men will believe in Him, and the Romans will come and take away both our place and our nation.’ But a certain one of them, Caiaphas, who was high priest that year, said to them, ‘You know nothing at all, nor do you take into account that it is expedient for us that one man should die, and that the whole nation should not perish.’”
The above verses make the reasoning and intention of the high priest clear. He is mainly afraid that his influential position and the Jewish religion will be abolished by the Romans because they all thought that if Jesus was not stopped, eventually the entire congregation would believe in Him and there would be no longer any need for their office and their religion (or nation.) In a nutshell we can confidently say that the high priest had Jesus put to death so that his influential office and the Jewish religion could continue its existence.
furthermore Paul was no by-polar; In a nutshell Paul was saying that when one receive the Holy Spirit the one has no longer a need for the Law, because with the Holy Spirit comes the Holy character of Christ, so if you live within that character you will always to the things that pleases Him. Simple no!