Now Peter and John went up together into the temple at the hour of prayer, being the ninth hour.
The Lame Man Healed (3:1-8)
How long after Pentecost the following incident occurred it is impossible to say, but probably not long.
Now Peter and John. These two are found first associated together by their Master, along with James, as a sacred triumvirate (Mark 5:37; Mark 9:2; Mark 14:33); then by themselves (Luke 22:8, and see John 13:23-24; John 21:20-21). Now we find them constantly together; but John, as being yet young, only as a silent actor, though unflinching witness for his Master, by the side of Peter (see the note at Acts 4:13).
Went (or 'were going') up together - were on their way up to the temple, х to (G3588) hieron (G2411)] - in what sense, see the note at Luke 2:27;
At the hour of prayer, [being] the ninth hour. The hours of public prayer at the Jewish temple were 9
A.M.; 12 noon; and 3 P.M. This last was "the ninth hour," reckoning, as the Jews did, from six in the morning; and it was the hour of "the evening sacrifice," when a large number were wont to congregate at the temple (Luke 1:10).