Please take a look at Romans, I believe it's the 13th chapter. You're looking at it the wrong way; the Church is simply and purely the fulfillment of that to which "the old Hebraic religion" pointed. There's no "divorce," there's a coming to fruition.
Christians are the grafted in branch. Yeshua came for the children of Israel first, the Chosen Ones. When the Jews rejected Yeshua He then turned to the non-Jews who accepted Him. If people think they’re still under the Law, well I feel sorry for them. The Law is not the Nine Commandments only (The first line is a statement followed by nine commandments) - but there are over six hundred laws. You tell me that Christians have to follow all of them to be right in the sight of G-d? After all, the Law is the Law.