Heresy
belief or opinion contrary to orthodox religious (especially Christian) doctrine.
Jesus, being the word, fulfilled the OT prophecies concerning himself as the saviour, Messiah and redeemer of his ppl. He told them to search the scriptures....... as we must also today to identify heretical doctrines of men against the word of God !
John 5:39-47
39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.
40 And ye WILL NOT come to me, that ye might have life.
41 I receive not honour from men.
42 But I know you, that ye have NOT the love of God in you.
43 I am come in my Father's name, and ye receive me not: if another shall come in his own name, him ye will receive.
44 How can ye believe, which receive honour one of another, and seek not the honour that cometh from God only?
45 Do not think that I will accuse you to the Father: there is one that accuseth you, even Moses, in whom ye trust.
46 For had ye believed Moses, ye would have believed me; for he wrote of me.
47 But if ye believe not his writings, how shall ye believe my words?
John 12:48-50 KJV
He that REJECTETH me and RECEIVERH NOT my words, hath one that judgeth him: the word that I have spoken, the same shall judge him in the last day. For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak.
Any interpretation, doctrine, tradition or ritual, creed or belief that is contrary to God's truth is heretical !
Believe what one chooses to believe but so too will the word of God be the judge of such beliefs.