Ambrose of Milan, on Isa 28:16

“Therefore thus saith the Lord God: Behold I will lay a stone in the foundations of Sion, a tried stone, a corner stone, a precious stone, founded in the foundation. He that believeth, let him not hasten.”

“The foundation of justice therefore is faith, for the hearts of the just dwell on faith. And the just man that accuses himself builds justice on faith, for his justice becomes plain when he confesses the truth. So the Lord says through Isaiah: "Behold, I lay a stone for a foundation in Zion." This means Christ as the foundation of the church. For Christ is the object of faith to all; but the church is as it were the outward form of justice; it is the common right of all.”

Imported from an open dataset — not yet checked against the printed edition.