This is all the more so because this foundation is also the creative and sustaining Wisdom and Power of God. It makes the Church unbending and immovable.
Even in ordinary buildings, the foundation determines the size, plan, and character of the structure, if a wise architect builds it. All the more must strict unity and harmony reign in the construction of living buildings, the souls of men.
Thus, by comparing the Church to a building on one foundation, Christ, the Apostle instructs the Corinthians, and through them all Christians. In building our inner temple, we must first and above all conform ourselves to the Foundation on which the Kingdom of God is built within us.
We must conform ourselves to what our supreme Architect requires of us, and only then to what His servants require.
"Let us build," says Saint John Chrysostom, "on this foundation and hold fast to it, as a branch to the vine. Let there be no division between us and Christ. If one is separated, he immediately perishes.
Let us cleave to Him, and cleave by works. For He says, 'He who keeps My commandments abides in Me' (Jn 14:20-21)."
When the Apostle Paul compares himself to a wise builder laying the foundation (v. 10), he seems to attribute much to himself. Yet, as Bishop Theophan observes, "the thought here is not that he calls himself most wise. This is only a comparison.
The force of the thought lies not in the wisdom of the builder, but in the firmness of the foundation. It also lies in the fact that this foundation is the only one.
This foreordained foundation, as the Apostle explains further, is Jesus Christ. The prophets called Him the cornerstone (Is 28:16), as did He Himself (Mt 21:42), and the holy Apostles (1 Pet 2:4)."