John Chrysostom, on Acts 1:3

“To whom also he shewed himself alive after his passion, by many proofs, for forty days appearing to them, and speaking of the kingdom of God.”

“For this He then remained forty days on earth, furnishing in this length of time the sure evidence of their seeing Him in His own proper Person, that they might not suppose that what they saw was a phantom. And not content with this, He added also the evidence of eating with them at their board: as to signify this, the writer adds, "And being at table with them, He commanded." And this circumstance the Apostles themselves always put forth as an infallible token of the Resurrection; as where they say, "Who did eat and drink with Him." And what did He, when appearing unto them those forty days? Why, He conversed with them, says the writer, "concerning the kingdom of God." For, since the disciples both had been distressed and troubled at the things which already had taken place, and were about to go forth to encounter great difficulties, He recovered them by His discourses concerning the future.”

Imported from an open dataset — not yet checked against the printed edition.