I don't know what New Covenant Theology is.<br><br>The Old Testament is relevant to Christians. We are to read it and assume that any statements apply to us, unless a specific group or time frame is specified. Ex: The Mosaic Law. Jesus' death fulfilled the Law (brought to completion). The Ten Commandments are just a summary of the entire Law of Moses. <br><br>The New Testament is filled with rules and regulations that God wants Christians to follow. To disregard any part of the Bible, Old Testament or New is sinful. But, do not try to obey the Law of Moses. To do so puts you under a curse. This is stated several places in the New Testament. All of the Ten Commandments are repeated in the New Testament except the commandment about the Sabbath. Also, several other parts of the Law are repeated in the New Testament. <br><br>If I want to do research on what God has to say on a certain subject, I use both the Old and New Testaments. Ex: there is a verse in the Old Testament that says our goods deeds are as filthy rags. I will quote this to people when trying to prove we can't work our way to heaven. The Old Testament as well as the New is relevant and applicable.
