7 On this account also, Daniel, foreseeing His advent, said that a stone, cut out without hands, came into this world. For this is what “without hands” means, that His coming into this world was not by the operation of human hands, that is, of those men who are accustomed to stone-cutting; that is, Joseph taking no part with regard to it, but Mary alone co-operating with the pre-arranged plan. For this stone from the earth derives existence from both the power and the wisdom of God. Wherefore also Isaiah says: “Thus says the Lord, Behold, I deposit in the foundations of Zion a stone, precious, elect, the chief, the corner-one, to be had in honour.” So, then, we understand that His advent in human nature was not by the will of a man, but by the will of God.
Source: Adversus haereses (New Advent)