1:3 {2} To whom also he shewed himself alive after his passion by many {b} infallible proofs, being seen of them forty days, and speaking of the things pertaining to the kingdom of God:
(2) Christ did not immediately ascend into heaven after his resurrection in order to thoroughly prove his resurrection, and with his presence strengthen and encourage his Apostles in the doctrine which they had heard.
(b) He called those things infallible proofs which are otherwise termed necessary: now in that Christ spoke, and walked, and ate, and was felt by many, these are sure signs and proofs that he truly rose again.
1:3 To whom he also shewed himself alive. He is a living Savior. Otherwise he could not more be a Savior than Socrates, Buddha, or any other sage.
After his passion. Suffering on the cross.
Being seen of them forty days. At various times during forty days. Eleven appearances are recorded. There were probably others.
Pertaining to the kingdom of God. His church, about to be established on the earth.
1:3 Being seen by them forty days - That is, many times during that space. And speaking of the things pertaining to the kingdom of God - Which was the sum of all his discourses with them before his passion also.
1:1-5 Our Lord told the disciples the work they were to do. The apostles met together at Jerusalem; Christ having ordered them not to depart thence, but to wait for the pouring out of the Holy Spirit. This would be a baptism by the Holy Ghost, giving them power to work miracles, and enlightening and sanctifying their souls. This confirms the Divine promise, and encourages us to depend upon it, that we have heard it from Christ; for in Him all the promises of God are yea and amen.