From a Greek word signifying (1) a choice, (2) the opinion chosen, and (3) the sect holding the opinion. In the Acts of the Apostles (5:17; 15:5; 24:5,14; 26:5) it denotes a sect, without reference to its character. Elsewhere, however, in the New Testament it has a different meaning attached to it. Paul ranks "heresies" with crimes and seditions ( Galatians 5:20 ). This word also denotes divisions or schisms in the church ( 1 Corinthians 11:19 ). In Titus 3:10 a "heretical person" is one who follows his own self-willed "questions," and who is to be avoided. Heresies thus came to signify self-chosen doctrines not emanating from God ( 2 Peter 2:1 ).
Source
- part_of
source-manifest/easton— Easton's Bible Dictionary (PD)