(21) Wherefore of these men which have companied with us.--From the retrospective glance at the guilt and punishment of the traitor, Peter passes, as with a practical sagacity, to the one thing that was now needful for the work of the infant Church. They, the Apostles, must present themselves to the people in their symbolic completeness, as sent to the twelve tribes of Israel, and the gap left by the traitor must be filled by one qualified, as they were, to bear witness of what had been said or done by their Lord during His ministry, and, above all, of His resurrection from the dead. That would seem, even in St. Paul's estimate, to have been a condition of apostleship (1Corinthians 9:1).

Went in and out . . .--The phrase was a familiar Hebrew phrase for the whole of a man's life and conduct. (Comp. Acts 9:28.)

Verse 21. - Of the men therefore for wherefore of these men, A.V.; event out for out, A.V.

1:15-26 The great thing the apostles were to attest to the world, was, Christ's resurrection; for that was the great proof of his being the Messiah, and the foundation of our hope in him. The apostles were ordained, not to wordly dignity and dominion, but to preach Christ, and the power of his resurrection. An appeal was made to God; Thou, Lord, who knowest the hearts of all men, which we do not; and better than they know their own. It is fit that God should choose his own servants; and so far as he, by the disposals of his providence, or the gifts of his Spirit, shows whom he was chosen, or what he has chosen for us, we ought to fall in with his will. Let us own his hand in the determining everything which befalls us, especially in those by which any trust may be committed to us.Wherefore of these men which have companied with us,.... Seeing there was such an imprecation, which carried in it the nature of a prophecy, that another should take the bishopric of Judas, or be made an apostle in his room, it was absolutely necessary that one should be immediately chosen to that office; and this is the force of the illative particle, wherefore; and it was highly proper that this choice should be of one among the men, and not the women; whom it did not become to bear any office, and exercise any authority in the church; hence it is said, "of these men", to the exclusion of women: and it was exceeding right, and a very good notion, that the choice should be of one from among themselves, and who was known unto them; with whose abilities, integrity, wisdom, and holy conversation, they were acquainted: and therefore it is added, "which have companied with us"; one of our own company, and not a stranger; with whom we have familiarly conversed, and whose character is well known to us: a rule which ought to be attended to, in the choice of inferior officers, as pastors and deacons; who ought to be of the body and community, among whom they are chosen to an office; and their qualifications for it be well known, and that for some time past, as follows:

all the time that the Lord Jesus went in and out among us; that is, ever since Christ called them to be his disciples and followers; and conversed with them, and discharged his office among them, governed, directed, taught, and instructed them; for it was not proper that a novice, a new plant, or one that was lately become a disciple, should be put into such an office; and the same holds good in proportion in other offices; men called to office should be of some standing, as well as of superior gifts.