You ask What is long?

 So I guess you are saying that there is a length that is considered long. Since a Nazirite was considered to have long hair then if you say Jesus was a Nazirite then he had long hair. This is somewhat a contradiction on what the Holy Spirit told Paul to write.

 

1 Corinthians 11

¹⁴ Doth not even nature itself teach you, that, if a man have long hair, it is a shame unto him?

 

thanks

Mike W