High Priests: Spiritual Overseers...

New Testament...

Hebrews 5:1-2
5:1 For every high priest taken from among men is ordained for men in things pertaining to God, that he may offer both gifts and sacrifices for sins;
    By Revelation...

DC 120:2-3
120:2a A branch may be presided over by a high priest, an elder, priest, teacher, or deacon, chosen and sustained by the vote of the branch. Districts may be presided over by a high priest, or an elder, who shall be received and sustained in his office by the vote of the district.
If a branch, or district be large, he who is chosen to preside should be an high priest, if there be one possessed of the spirit of wisdom to administer in the office of president;
or if an elder be chosen who may by experience be found qualified to preside, as soon as practicable thereafter he should be ordained an high priest by the spirit of wisdom and revelation in the one ordaining, and by direction of a high council, or General Conference, as required in the law.