A heretic is someone who is in a
false religion outside the
Catholic Church. For example,
Protestantism, Judaism, Muslim etc. One of the known heretics of the past were, Martin Luther (ain't talkin about King) who started Lutheranism by posting his theses on the church door in 1517. Also Thomas Cramner, who thought he was an archbishop of Canterbury. He started the Anglican Missal.
The heretic Thomas Cramner got burned on the stake by Queen Mary I.
Person 1: There are two Gods.
Person 2: No,
Jesus Christ is True God and True Man.
Person 1: Nah,
Jesus Christ is just a son. God is God.π
Person 2: No,
Jesus Christ is the Second Person of the Holy Trinity. The Father, the Son and the Holy Ghost are Co-eternal and are always equal.
Person 1: Your opinions manπ
Person 2: Damn Heretic