Luke 1:8
“And it came to pass, that while he executed the priest’s office before God in the order of his course,”
And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless.
And they had no child, because that Elisabeth was barren, and they both were now well stricken in years.
And it came to pass, that while he executed the priest’s office before God in the order of his course,
According to the custom of the priest’s office, his lot was to burn incense when he went into the temple of the Lord.
And the whole multitude of the people were praying without at the time of incense.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And he appointed, according to the order of David his father, the courses of the priests to their service, and the Levites to their charges, to praise and minister before the priests, as the duty of every day required: the porters also by their courses at every gate: for so had David the man of God commanded.”
“These were the orderings of them in their service to come into the house of the Lord, according to their manner, under Aaron their father, as the Lord God of Israel had commanded him.”
“And Hezekiah appointed the courses of the priests and the Levites after their courses, every man according to his service, the priests and Levites for burnt offerings and for peace offerings, to minister, and to give thanks, and to praise in the gates of the tents of the Lord.”
“This is the thing that ye shall do; A third part of you entering on the sabbath, of the priests and of the Levites, shall be porters of the doors;”
“And I will sanctify the tabernacle of the congregation, and the altar: I will sanctify also both Aaron and his sons, to minister to me in the priest’s office.”