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Because of Christ, the Christian is not bound to the Old Covenant Law by way of obligation. Because of Christ, a new desire has been placed inside the believer that was not there before. This is what the Jewish prophets foresaw would happen. Take Jeremiah 31:34, for instance, where the prophecy is that no one will have to teach his neighbor what God requires of him because he will know the will of God in his heart. The transformation is internal and it is real. The affections of the Christian are different; they are radically different from former, sinful ones. This indwelling of the Holy Spirit is what makes the Christian's transformation possible, and it is he who sustains love for God in the believer.