Jesus Christ promised the one who loves Him: "We will come to him and make Our abode with him" (Jn 14:23).
The Apostle passes over in silence the conclusion that should be drawn from the preceding words, because it is known.
If they were the temple of God, and the Spirit of God dwelt in them, and God is One, then it follows that they should not be divided from one another.
Rather, they should remain inseparable in the unity of faith. He passes over this conclusion in silence, I say, in order to strike them with fear.
By this he would uproot disagreement and unite into one the divided members. "If anyone destroys the temple of God," he says, "God will destroy him."
We destroy this holy temple in two ways. Either we damage its foundation, teaching impious dogmas instead of Orthodox ones, and superstition instead of the right faith.
Or we damage the building itself, committing sins hateful to God instead of virtues most pleasing to God.
Whoever destroys the holy temple of God in this way, God will destroy, that is, ruin and annihilate.
We see a terrible example of such wrath of God in Arius and Judas. They destroyed the holy temple of God.
The first taught that Jesus Christ is not consubstantial with His Father, but of another essence. The second built into that temple avarice and betrayal of Jesus Christ.
Therefore Arius was destroyed, vomiting out all his bowels and inward parts together with his abominable soul. The betrayer Judas hanged himself by his own will, for after betraying Christ, "he went and hanged himself" (Mt 27:5).