Remigius of Auxerre
Catena Aurea · Matthäusevangelium 1
Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying, Behold, a Virgin shall be with child, and shall bring forth a Son, and they shall call His Name Emmanuel, which being interpreted is, God with us. Here we must enquire why he should say all this was done, when above he has only related the conception. It should be known that he says this to shew, that in the presence of God all this was done before it was done among men. Or he says, all this was done, because he is relating past events; for when he wrote, it was all done.
It is a question, who interpreted this name? The Prophet, or the Evangelist, or some translator? It should be known then, that the Prophet did not interpret it; and what need had the Holy Evangelist to do so, seeing he wrote in the Hebrew tongue? Perhaps that was a difficult and rare word in Hebrew, and therefore needed interpretation. It is more probable that some translator interpreted it, that the Latins might not be perplexed by an unintelligible word. In this name are conveyed at once the two substances, the Divinity and Humanity in the one Person of the Lord Jesus Christ. He who before all time was begot in an unspeakable manner by God the Father, the same in the end of time was made Emmanuel, that is, God with us, of a Virgin Mother. This God with us may be understood in this way. He was made with us, passible, mortal, and in all things like unto us without sin; or because our frail substance which He took on Him, He joined in one Person to His Divine substance.