Teach them also to hand it on in the same way to those who will be successors after them. So it must be to the end. In the word “keep,” spoken to St. Timothy, let all who have received the grace of apostolic succession hear a lesson for themselves. They must preserve unchanged what they received from their predecessors, neither introducing nor permitting any novelty. “By the Holy Spirit Who was given to us.” “How are you to keep this? Not by human power, but by the Holy Spirit, Who dwells in us by virtue of baptism. If we preserve Him in ourselves and do not drive Him away by carelessness and evil disposition, He too will preserve in us all that we have from God. Therefore strive to preserve the Spirit, and He will preserve in you what has been entrusted to you,” says Blessed Theophylact and Oecumenius. St. Chrysostom explains this more fully: “Keep the good deposit. How? By the Holy Spirit Who dwells in us. The human soul and human power cannot by themselves preserve such good things entrusted to them. Why? Because around us there are many robbers, the darkness is deep, the devil stands by and schemes, and we do not know at what hour or time he will attack us. How then can we preserve them? By the Holy Spirit, that is, if we have the Spirit within us. He will be present in us if we do not drive away His grace. For ‘unless the Lord builds the house, those who build labor in vain. Unless the Lord guards the city, the watchman keeps vigil in vain’ (Ps 126:1). He is our wall, He is our enclosure, He is our refuge. You will say, if He dwells in us and Himself guards us, why are instructions needed? So that we may hold Him, preserve Him, and not drive Him away from ourselves by evil deeds.” “In us”: in whom, and how? In whom? It may mean in you and me. It may mean in all the Apostles and their nearest disciples, who also are called Apostles. It may mean in the Apostles and in all successors, past, present, and future. How? The Holy Spirit came upon the Apostles directly. Their successors received and receive Him through ordination. Blessed Theophylact, saying that we have the Holy Spirit through baptism, suggests that by the Holy Spirit he means common Christian grace. Therefore by “in us” he means in Christians. Yet a little earlier, when speaking of παραθήκη, he said that this means the commandments about faith and life handed down to St. Timothy. He then added, “or the Apostle means the gift which you received, as he said above,” that is, in verse 6. Therefore one cannot deny that here too he meant the Holy Spirit received through ordination.