'Serve' in the Bible

This [is] Aaron's allotted portion and his sons' allotted portion from Yahweh's offerings made by fire {when} he brought them forward to serve as priests for Yahweh.

And the priest who is anointed and who is {ordained} to serve as a priest in place of his father shall make atonement; thus he shall put on the linen garments, the holy garments,