Acts 13:39

“In him, every one believing is justified from all things from which you are not able to be justified by the law of Moses.” Paul enforces the fact that there never was justification in any other name. All the bleeding birds and beasts on Jewish altars slain, since the world began, never could wash away a solitary sin. They could only point earth's guilty millions to the “Lamb of God that taketh away the sins of the world.” The first four thousand years were prospective, faith looking forward through types and symbols to the coming Christ. Paul assures them their own Christ of prophecy, whom the patriarchs and prophets trusted to save them, has already come; and, of course, it is the best news they ever heard.