“according to the custom of the priest’s office, his lot was to enter into the temple of the Lord and burn incense.”
Luke 1:9 (WEB)
Context Reading
7But they had no child, because Elizabeth was barren, and they both were well advanced in years. 8Now while he executed the priest’s office before God in the order of his division 9according to the custom of the priest’s office, his lot was to enter into the temple of the Lord and burn incense. 10The whole multitude of the people were praying outside at the hour of incense. 11An angel of the Lord appeared to him, standing on the right side of the altar of incense.