So it was, that while he was serving as priest before God in the order of his division,
Luke 1:8
Surrounding context
1:7 But they had no child, because Elizabeth was barren, and they were both well advanced in years.
1:8 So it was, that while he was serving as priest before God in the order of his division,
1:9 according to the custom of the priesthood, his lot fell to burn incense when he went into the temple of the Lord.