brother (about 220 times) [sister: four times]
Acts 9:30; 21:7; I Cor. 3:1; Rom. 16;1; Christ--Heb.2:11-12
saint (about 60 times) [plural except for Phil. 4:21]
Acts 9:32; Phil. 1:1; Jude 3; Christ--Mark 1:24
disciple (28 times in ASV Acts; about 230 times in
Gospels, but mostly of those with Jesus)
Acts 6:1-2; 9:26; 14:21; Matt. 28:19; Christ--Matt.10:24-25
Christian (3 times)
Acts 11:26; 26:28; I Peter 4:16
believer (twice in KJV)
Acts 5:14; I Tim. 4:12; Christ--John 14:1