Luke 1:8-11 King James Version (KJV)
8 And it came to pass, that while he executed the priest's office before God in the order of his course,
9 According to the custom of the priest's office, his lot was to burn incense when he went into the temple of the Lord.
10 And the whole multitude of the people were praying without at the time of incense.
11 And there appeared unto him an angel of the Lord standing on the right side of the altar of incense.
Luke 1:8-11 New International Version (NIV)
8 Once when Zechariah’s division was on duty and he was serving as priest before God, 9 he was chosen by lot, according to the custom of the priesthood, to go into the temple of the Lord and burn incense. 10 And when the time for the burning of incense came, all the assembled worshipers were praying outside.
11 Then an angel of the Lord appeared to him, standing at the right side of the altar of incense.