13:2 As they {b} ministered to the Lord, and fasted, the Holy Ghost said, Separate me Barnabas and Saul for the work whereunto I have {c} called them.
(b) While they were busy doing their office, that is, as Chrysostom expounds it, while they were preaching.
(c) The Lord is said to call, from which this word called comes from, which is common in the Church, when he causes that to be which was not, whether you refer it to the matter itself, or to any quality or thing about the matter: and the use of the word call has come about because when things begin to be, then they have some name: and furthermore this also declares God's mighty power, in that he spoke the word, and things were made.
13:2 As they ministered. These men worshiped before the Lord, fasting, and no doubt asking for guidance in the extension of Christianity.
The Holy Ghost said. By an inspiration given to some one of these prophets. God has spoken at sundry times and in divers manners unto the fathers by the one of these prophets (Heb 1:1). Compare Ac 20:23.
Separate me Barnabas and Saul. Both had been tried and shown to be worthy. They are now, by Divine direction, to be formally consecrated to the work of preaching the gospel to the Gentiles. From this time Antioch is the great missionary center.
For the work whereunto I have called them. God called; men separated, or formally set apart.
13:2 Separate me Barnabas and Saul for the work to which I have called them - This was not ordaining them. St. Paul was ordained long before, and that not of men, neither by man: it was only inducting him to the province for which our Lord had appointed him from the beginning, and which was now revealed to the prophets and teachers. In consequence of this they fasted, prayed, and laid their hands on them, a rite which was used not in ordination only, but in blessing, and on many other occasions.
13:1-3 What an assemblage was here! In these names we see that the Lord raises up instruments for his work, from various places and stations in life; and zeal for his glory induces men to give up flattering connexions and prospects to promote his cause. It is by the Spirit of Christ that his ministers are made both able and willing for his service, and taken from other cares that would hinder in it. Christ's ministers are to be employed in Christ's work, and, under the Spirit's guidance, to act for the glory of God the Father. They are separated to take pains, and not to take state. A blessing upon Barnabas and Saul in their present undertaking was sought for, and that they might be filled with the Holy Ghost in their work. Whatever means are used, or rules observed, the Holy Ghost alone can fit ministers for their important work, and call them to it.