Brother, Brethren, Brotherhood, Brotherly - Vine's Expository Dictionary of New Testament Words
Brother, Brethren, Brotherhood, Brotherly
[ 1,,G80, adelphos ]denotes a brother, or near kinsman;" in the plural, "a community based on identity of origin or life." It is used of:
(1) male children of the same parents, Matthew 1:2; Matthew 14:3;
(2) male descendants of the same parents, Acts 7:23, Acts 7:26; Hebrews 7:5;
(3) male children of the same mother, Matthew 13:55; 1 Corinthians 9:5; Galatians 1:19;
(4) people of the same nationality, Acts 3:17, Acts 3:22; Romans 9:3. With "men" (aner, "male"), prefixed, it is used in addresses only, Acts 2:29, Acts 2:37, etc.;
(5) any man, a neighbor, Luke 10:29; Matthew 5:22; Matthew 7:3;
(6) persons united by a common interest, Matthew 5:47;
(7) persons united by a common calling, Revelation 22:9;
(8) mankind, Matthew 25:40; Hebrews 2:17;
(9) the disciples, and so, by implication, all believers, Matthew 28:10; John 20:17;
(10) believers, apart from sex, Matthew 23:8; Acts 1:15; Romans 1:13; 1 Thessalonians 1:4; Revelation 19:10 (the word "sisters" is used of believers, only in 1 Timothy 5:2);
(11) believers, with aner, "male," prefixed, and with "or sister" added, 1 Corinthians 7:14 (RV), 15; James 2:15, male as distinct from female, Acts 1:16; Acts 15:7, Acts 15:13, but not Acts 6:3. * [* From Notes on Thessalonians, by Hogg and Vine, p. 32.]
Notes:
(1) Associated words are adelphotes, primarily, "a brotherly relation," and so, the community possessed of this relation, "a brotherhood," 1 Peter 2:17 (See 1 Peter 5:9, marg.); philadelphos, (phileo, "to love," and adelphos), "fond of one's brethren," 1 Peter 3:8; "loving as brethren," RV; philadelphia, "brotherly love," Romans 12:10; 1 Thessalonians 4:9; Hebrews 13:1; "love of the brethren," 1 Peter 1:22; 2 Peter 1:7, RV; pseudadelphos, "false brethren," 2 Corinthians 11:26; Galatians 2:4.
(2) In Luke 6:16; Acts 1:13, the RV has "son," for AV, "brother."
(3) In Acts 13:1, for suntrophos, See BRING, B, Note
(6).