John 2:18

And what say they? "What sign showest Thou unto us, seeing that Thou doest these things?" Alas for their utter madness! Was there need of a sign before they could cease their evil doings, and free the house of God from such dishonor? and was it not the greatest sign of His Excellence that He had gotten such zeal for that House? In fact, the well-disposed were distinguished by this very thing. At one time then He said, that the Temple was made by them "a den of thieves," showing that what they sold was gotten by theft, and rapine, and covetousness, and that they were rich through other men's calamities; at another, "a house of merchandise," pointing to their shameless traffickings. "But wherefore did He this?" Since he was about to heal on the Sabbath day, and to do many such things which were thought by them transgressions of the Law in order that He might not seem to do this as though He had come to be some rival God and opponent of His Father, He takes occasion hence to correct any such suspicion of theirs.

Wherefore He will not give them a sign; and before, when they came and asked Him, He made them the same answer, "A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas." Only then the answer was clear, now it is more ambiguous. This He doth on account of their extreme insensibility; for He who prevented them without their asking, and gave them signs, would never when they asked have turned away from them, had He not seen that their minds were wicked and false, and their intention treacherous. Think how full of wickedness the question itself was at the outset. When they ought to have applauded Him for His earnestness and zeal, when they ought to have been astonished that He cared so greatly for the House, they reproach Him, saying, that it was lawful to traffic, and unlawful for any to stop their traffic, except he should show them a sign. What saith Christ? "Destroy this Temple, and in three days I will raise it up." Many such sayings He utters which were not intelligible to His immediate hearers, but which were to be so to those that should come after. And wherefore doth He this? In order that when the accomplishment of His prediction should have come to pass, He might be seen to have foreknown from the beginning what was to follow; which indeed was the case with this prophecy.

"The Jews said unto Him, What sign showest thou unto us, seeing that thou doest these things?" And the Lord answered, "Destroy this temple, and in three days I will raise it up. Then said the Jews, Forty and six years was this temple in building, and dost thou say, In three days I will rear it up?" Flesh they were, fleshly things they minded; but He was speaking spiritually. But who could understand of what temple He spoke? But yet we have not far to seek; He has discovered it to us through the evangelist, he has told us of what temple He said it. "But He spake," saith the evangelist, "of the temple of His body." And it is manifest that, being slain, the Lord did rise again after three days. This is known to us all now: and if from the Jews it is concealed, it is because they stand without; yet to us it is open, because we know in whom we believe.

For inasmuch as they sought a sign from our Lord of His right to eject the customary merchandize from the temple, He replied, that that temple signified the temple of His Body, in which was no spot of sin; as if He said, As by My power I purify your inanimate temple from your merchandize and wickedness; so the temple of My Body, of which that is the figure, destroyed by your hands, on the third day I will raise again.

The Jews seeing Jesus thus acting with power, and having heard Him say, Make not My Father's house an house of merchandize, ask of Him a sign; Then answered the Jews and said unto Him, What sign shewest Thou unto us, seeing that Thou doest these things?