Acts 13:39

Acts 13:39. "And by Him all that believe are justified from all things, from which ye could not be justified by the law of Moses." This is true in two sense. (1.) The Law of Moses made no provision for the expiation of presumptuous sins: there were no sacrifices appointed for such sins: Numbers 15:30, "But the soul that doeth ought presumptuously (whether he be born in the land or a stranger), the same reproacheth the Lord; and that soul shall be cut off from among his people." It was so ordered on purpose that man being kept in doubt, and their consciences are not fully satisfied about their presumptuous sins, that when Christ came, and the gospel which declared the forgiveness of all sin through Him, ought to be the more joyful tidings. The forgiveness of sin was never fully revealed till Christ came. It is probable that the forgiveness of presumptuous sin had been a matter of great question and controversy amongst their doctors, and therefore Paul tells them that it is by Christ they are justified from those sins. And (2.) The sacrifices of the Law of Moses could not fully take away the guilt of any sin.

Acts 17:26-27