but if I wait long, that you may know how men ought to behave themselves in the house of God, which is the assembly of the living God, the pillar and ground of the truth.
Thus it is with the church. It is entrusted with the business of maintaining the truth, of defending it from the assaults of error, and of transmitting it to future times. The truth is, in fact, upheld in the world by the church. The people of the world feel no interest in defending it, and it is to the church of Christ that it is owing that it is preserved and transmitted from age to age. The word rendered “ground” - ἑδραίωμα hedraiōma - means, properly, a basis, or foundation. The figure here is evidently taken from architecture, as the use of the word pillar is. The proper meaning of the one expression would be, that truth is supported by the church. as an edifice is by a pillar; of the other, that the truth rests “on” the church, as a house does on its foundation. It is that which makes it fixed, stable, permanent; that on which it securely stands amidst storms and tempests; that which renders it firm when systems of error are swept away as a house that is built on the sand; compare notes on Matthew 7:24-27.