Many Christians erroneously believe the Old Testament has been eliminated by the New Testament but the Lord Jesus NEVER said this. In fact, He said the following:
“Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill. For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished. Whoever then annuls one of the least of these commandments, and teaches others to do the same, shall be called least in the kingdom of heaven; but whoever keeps and teaches them, he shall be called great in the kingdom of heaven.” [Matthew 5:17-19] 
In this passage, the Lord Jesus grants full approval of the entire Torah, accepts it in every respect without question, and allows for no elimination of any single law. He is saying that the Law of Moses is perfect and complete, just as the apostle Paul later taught in his writings, and He endorses the Law wholeheartedly. The Lord Jesus put His entire ministry and mission on the line by doing this, tying Himself entirely and absolutely to the Torah and its existence at least until heaven and earth passes away.
Therefore, the notion that the Old Testament or the Law of Moses is no longer viable or in play could not be more wrong: Every definition of sin regarding personal human behavior is still 100% in effect. So if people say, “Well, since Jesus never said anything about this sin or that sin, it must be okay to practice such,” the correct response is that He actually did since He endorsed the Law and the Prophets. If the Law of Moses said something was a sin, it is still a sin to this day and the Lord Jesus agrees.
Also, if the Torah said a particular action or behavior was a gross sin, or a complete violation of God’s intent, or an abomination, then it was and remains an abomination. You can tell which sins were the worst by the penalties attached to them. The worst sins had the sentence of death as the penalty, signifying the outright heinousness of the behavior and ultimately the total contempt for the Lord and His Law.
Therefore, even though the Gospels do not address every single specific sin or the worst sins that required the death penalty, the Lord endorsed the written Torah, which does.
THE ORAL LAW
Of course, the original written Torah was added to in a sense and amended with the addition of the unwritten oral law, which began about the time of the Babylonian Captivity and grew in content until the first century A.D. This oral law did not change the written Law (the Torah—the Law of Moses) which remained intact, but it had changed and corrupted the original intent of the written Law. The Lord Jesus addressed this corrupting influence on many occasions, rebuking those Torah-teachers who advocated for its use in altering the original.
(Many Christians are guilty of the same practice, having altered the original teachings of the Lord Jesus to suit their own taste and limited understanding, and in some cases changing His intent and meaning entirely.)
Since the New Testament thus defines sin by the Lord’s support of the Law and the Prophets, there is actually no distinction between the two in defining sin. Sin is still what it has always been and it still incurs a penalty. Many people do not understand they are paying a penalty for sin in some form or another at present based on some past or present sin, which they do not recognize as sin. They do not consciously make the cause and effect connection between the two.
But God is not mocked. What we plant is what we will harvest. The ultimate penalty for unconfessed sin comes after physical death. It is not the Lord’s fault if people choose to die in their sins having rejected the only cure and the only cleansing agent—the Blood of Jesus.
The worst sins require the death penalty. The Lord Jesus paid that death penalty in full on our behalf. He fulfilled the requirements of the Law regarding sin and whoever applies the penalty He paid toward their own sins will have their long list of violations against God and man expunged, and their official record of sin will be erased as if it never existed.
This is the Lord’s grace. This is His mercy. This is His love.
© 2016 by RJ Dawson. All Rights Reserved. [To Be Continued…]
 Unless otherwise noted all Scriptures are taken from the New American Standard Bible, © 1960, 1963, 1968, 1971, 1972, 1973, 1975, 1977, 1995 by The Lockman Foundation. Used by permission.
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