They gave forth their lots; the manner is not so certain, nor necessary to be known; but the whole disposing of the lot being from the Lord, as Proverbs 16:33, they were thus as it were immediately chosen by God, and were consecrated by Christ himself; no apostle ordaining another, but all of them being called and ordained by Christ. He was numbered with the eleven apostles; the rest of the apostles, and the whole church, agreeing with that Divine choice which was made.
Related Commentaries of Acts 1:26
Acts 1:26
26 And they gave forth their lots; and the lot fell upon Matthias; and he was numbered with the eleven apostles.