Luke.1.8Now while he was serving as priest before God when his division was on duty,
Luke.17.10So you also, when you have done all that you were commanded, say, ‘We are unworthy servants; we have only done what was our duty.’ ”
Acts.6.3Therefore, brothers, pick out from among you seven men of good repute, full of the Spirit and of wisdom, whom we will appoint to this duty.
Heb.9.6These preparations having thus been made, the priests go regularly into the first section, performing their ritual duties,