Finally, be all like-minded, compassionate, loving as brothers, tenderhearted, courteous,
brotherly love -- This is literally a compound of philos (love) and adelphos (brother). This is, of course, the generic use of brother. Possibly a better way to express this is “show family love for all believers” (cf. Romans 12:10; 1 Thessalonians 4:9). This reflects Jesus’ command in John 13:34; 1 John 3:23; 1 John 4:7-8, 1 John 4:11-12, 1 John 4:19-21. - Utley