BAPTISM ABSOLUTELY NECESSARY
Jesus Christ is the Head and Lord of the Orthodox Church and every member is under the command of the Lord. The Lord sent His Apostles out ordering triune immersion baptism . The Apostles baptized everyone and after the Apostolic period came the period of the Seven Ecumenical Synods from 325AD to 783 AD. The Ecumenical Synods are the rudder that keeps the Church on course. The Canons are binding upon all, and all heretics and schismatics need baptism.
The Synod of Carthage was a regional Synod held in Carthage, Africa in 256 AD, and was ecumenical in character being approved, and this Canon is included in the rudder of the Church, for it bears it bears the authority of the Seven Ecumenical Synods.
CANON OF THE THIRD REGIONAL SYNOD
HELD IN CARTHAGE IN THE TIME OF CYPRIAN
“We declare that no one can be baptized outside of the catholic Church, there being one baptism, and this being existent only in the catholic Church.”
“While assembled in parliament, dear brethren, we have read letters sent by you concerning those who are presumed among heretics or schismatics to have been baptized and who are joining the catholic Church, which is one single institution in which we are baptized and are regenerated, concerning which facts we are firmly convinced that you yourselves in doing so are ensuring= the solidity of the catholic Church, yet inasmuch as you are of the same communion with us and wished to inquire about this matter on account of a common love, we are moved to give you, and conjoin in doing so, not any recent opinion, but, on the contrary one which has been tried and tested with all accuracy and diligence of yore by our predecessors, and have been observed by us.