Not every one that says unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that does the will of my Father who is in heaven.
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Theophylact of Ochrid
Here Jesus shows that He is Lord by saying, "Not every one that saith unto Me, Lord, Lord." Jesus in fact is saying that He is God. He teaches us that we derive no benefit from our faith if it is without works. "He that doeth the will of My Father." He did not mean, "that did the will of My Father on one occasion" but "that doeth the will of My Father continually until his death." And He did not say, "that doeth My will," lest He scandalize His listeners, but instead, "that doeth the will of My Father." For the will of a father and his son are one and the same, unless the son rebels.