For no other foundation can a man lay than what is laid, which is Jesus Christ.
All Commentaries on 1 Corinthians 3:11 Go To 1 Corinthians 3
Cornelius a Lapide
AD 1637
For other foundation can no man lay. I have laid the foundation of your Church: let Apollos and others see what superstructure they raise upon, but not endeavour to lay a new foundation. For no other foundation can be laid, for it is Jesus Christ Himself. The foundation, then, of the Church, and of each individual soul in it, is Jesus Christ, i.e, faith in Him as our Saviour, and especially that faith which is quickened by charity, on which I have built you. So Anselm, and S. Gregory (lib. vii. epist47).
In this sense Christ alone is the foundation of the Church, and the foundation of the foundations, as S. Augustine says (Ps. lxxxvii1), because He rests on Himself alone, and bears up all others, even Peter. In another sense Peter is the foundation of the Church, viz, a secondary one, because from his firmness in the faith he cannot publicly teach error, but always confirms others in it, and gives them light. This is laid down by S. Thomas and all Catholic theologians. In a similar sense, not only Peter, but all the Apostles, are called the foundations of the Church ( Psalm 87:1; Revelation 21:19).