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A "minister" by definition in English is one who serves others. It carries the same meaning in Hebrew and Greek in the Bible. Here are some definitions from Easton's Revised Bible Dictionary:
One who serves, as distinguished from the master.
1. Hebrew: meshereth, applied to an attendant on one of superior rank,
a. to Joshua, the servant of Moses Exodus 33:11
b. to the servant of Elisha 2 Kings 4:43
c. to attendants at court 2 Chronicles 22:8
d. to the priests and Levites Jeremiah 33:21 Ezekiel 44:11
2. Hebrew pelah Ezra 7:24 a "minister" of religion. Here used of that class of sanctuary servants called "Solomon’s servants" in Ezra 2:55-58 Nehemiah 7:57-60
3. Greek leitourgos, a subordinate public administrator, and in this sense applied to magistrates Romans 13:6 It is applied also to our Lord Hebrews 8:2 and to Paul in relation to Christ Romans 15:16
4. Greek hyperetes (literally, "under-rower"), a personal attendant on a superior, thus of the person who waited on the officiating priest in the synagogue Luke 4:20. It is applied also to John Mark, the attendant on Paul and Barnabas Acts 13:5
5. Greek diaconos, usually a subordinate officer or assistant employed in relation to the ministry of the gospel, as to:
a. Paul and Apollos #1Co 3:5
b. Tychicus Ephesians 6:21
c. Epaphras Colossians 1:7
d. Timothy 1Thessalonians 3:2
e. Christ Romans 15:8
I hope you have found this helpful.
God bless!
Mike,
thisisyourbible.com