If you read the entire article he says that we are still under the Law. We are not under the Law but under Grace. Jesus fullfiled the Law. The Law reveals and stimulates sin.
The author also calls for the death penalty for sodomites. That seems to belong more to Islam than to Christianity.
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Jesus did not preach excusing sin, emptying the jails, and repealing the criminal law; but He did come to break the power of sin in the here-and-now and save souls for eternity.