9 But attend to a more clear proof that the Church has such as these. Lest any one should say to us, “He spoke entirely of the Pharisees, He spoke of the Scribes, He spoke of the Jews; for the Church has none such.” Who then are they of whom the Lord says, “Not every one that says unto Me, Lord, Lord, shall enter into the kingdom of heaven”? And He added, “Many shall say to Me in that day, Lord, Lord, have we not prophesied in Your Name, and in Your Name done many mighty works, and in Your Name have eaten and drunken?”
What! Do the Jews do these things in Christ's name? Assuredly it is manifest, that He speaks of them who have the Name of Christ. But what follows? “Then will I say to them, I never knew you; depart from Me, all you that work iniquity.” Hear the Apostle sighing concerning such as these. He says that some preach the Gospel “through charity,” others “by occasion;” of whom he says, “They do not preach the Gospel rightly.” A right thing, but themselves not right. What they preach is right; but they who preach it are not right.
Why is he not right? Because he seeks something else in the Church, seeks not God. If he sought God, he would be chaste; for the soul has in God her lawful husband. Whosoever seeks from God ought besides God, does not seek God chastely. Consider, Brethren; if a wife love her husband because he is rich, she is not chaste. For she loves not her husband, but her husband's gold. Whereas if she love her husband, she loves him both in nakedness and poverty. For if she love him because he is rich; what if (as human chances are) he be outlawed and all on a sudden be reduced to need? She gives him up, perhaps; because what she loved was not her husband, but his property. But if she love her husband indeed, she loves him even more when poor; for that she loves with pity too.
Source: Sermons on Selected Lessons of the New Testament (New Advent)