Diamond says, “The Old Covenant Law was nailed to the Cross - in its entirety. It is not longer in force.”
I think this statement needs some clarification. The Master Jesus Christ referred to the need to obey the law on many occasions. My whole argument here is really based on the proposition that we are required to obey the Law of Moses on the subject of Sexual Relations, that this law remains in force. And a nation that rebels against the Law is not qualified to receive the blessings of Divine Providence. Perhaps the harshness of the judgment related to the breaking of the law has been mitigated by the advent of Christ, but the need to obey has not been eliminated. The need to encourage obedience has not been eliminated. The principle of repentance was surely carried forward from the old to the new. Jesus said he came to fulfill the law and the prophets, not to destroy them. In relationship to Mary M. Jesus stopped the people from stoning her to death, but he also said to her, “Go and sin no more.” Are we still on the same page?
We are not required to obey the Law of Moses because that Law was nailed to the cross. It was only intended for Israelites anyway. We are required to obey the Law of Christ. You can, for example find every one of the Ten Commandments except the Sabbath Commandment repeated in the New Testament. The reason for that is that the Sabbath was the SIGN of the Old Covenant. Just because the Old Covenant is no longer in force does not mean that the New Covenant does not have Commandments or condemn the same sorts of evil forbidden in the old Covenant. But The law of the Spirit of Life has set us free from the law of sin and death.
Look at it this way. We're not under the Articles of Confederation anymore, but that doesn't mean that laws against murder and sexual immorality are no longer binding.
Cordially,