Matthew 10:2

First, Simon. [1] Simon was the first of the apostles, not in the time of his vocation, as his brother Andrew was called to the apostleship before him, but in dignity, in as much as he was constituted the vicar of Christ, and the head of the Church. (Menochius) --- Who is called Peter. When he first came to our Saviour, (John i. 42,) he said, Thou art Simon, son of Jonas, (or John) thou shalt be called Peter; in Chaldaic, Cephas; that is to say, a rock, designing to make him the first fundamental stone or head of his whole Church. See also Matthew xvi. 18. Beza, without any grounds, would have the word first to be an addition. But it is found in all Greek manuscripts as well as in the ancient fathers. (Witham)

[BIBLIOGRAPHY]

Primus Simon, Greek: protos Simon. See St. Jerome, St. John Chrysostom, &c.