Boyd’s Bible Dictionary:
(assistant). Attendant (Ex. 24:13; Josh. 1:1; 1 Kings 19:21; Ezra 8:17). Magistrate (Rom. 13:6). Preacher and teacher (1 Cor. 4:1; 2 Cor. 3:6). Celestial high priest (Heb. 8:1-3).
Concise Bible Dictionary:
The word commonly occurring in the Old Testament is sharath, “to minister, serve.” Joshua was Moses’ minister. All God’s hosts are called “ministers of his, that do his pleasure,” and He maketh “his ministers a flaming fire.” The priests were the ministers of Jehovah (Josh. 1:1; Psa. 103:21; Psa. 104:4; Joel 2:17). In the New Testament three words are used.
1. διάκονος. See DEACON.
2. λειτουργός, “a public servant,” one holding an official position. It is applied to the Lord; to angels; to Paul; and to magistrates (Rom. 13:6; Rom. 15:16; Heb. 1:7; Heb. 8:2).
3. ὑπηρέτης, literally “under-rower,” and so an “attendant” on, or “assistant” to a superior authority (Luke 1:2; Luke 4:20; Acts 13:5; Acts 26:16; 1 Cor. 4:1). It is also translated “officer” and “servant.”
Strong’s Dictionary of Greek Words:
Transliteration:
leitourgos
Meaning:
from a derivative of 2992 and 2041; a public servant, i.e. a functionary in the Temple or Gospel, or (genitive case) a worshipper (of God) or benefactor (of man)