“And they appointed two, Joseph called Barsabas, who was surnamed Justus, and Matthias.”
King James Version (KJV)
1:23 And they appointed two - So far the faithful could go by consulting together, but no further. Therefore here commenced the proper use of the lot, whereby a matter of importance, which cannot be determined by any ordinary method, is committed to the Divine decision.
Ac 1:23 They appointed two. Not the apostles, but the brethren, men who met these conditions, then cast lots between them in order that the Lord might make the choice. The two men named are not mentioned elsewhere.