Let me clarify, I am not giving credence to the Cista Mystica website, except for the portion that is the Mirror of John Bartram's disappeared site on
I am aware that the Mirror of John Bartram's disappeared site on
Chrestianity says what you quoted it to say. I encourage you to read more of that mirrored site, since it explains the reasons for the shocking claims he made in the words which you quoted.
The Roman writer named Suetonius (in a document which many Christians say is about Christ actually says Chrestus instead of Christus. The Roman historian Tacitus (in a document which many Christians say is about Christ and Christians) which says Christianos has been forensically shown be a change of an original wording oof Chrestianos. See https://en.wikipedia.org/wiki/The_Christ_Myth and https://rationalwiki.org/wiki/Jesus_myth_theory .
In one of the gospels Jesus is credited as saying "Why do you say I am good. No one is good but the father." In that passage the word translated as "good" is "chrestus".
Paul's letter to the Philippians at 1:21 in the way it is translated in most English translations is perplexing: "For me to live is Christ, and to die is gain." Regarding that verse, the famous Jewish scholar and historian named Hugh J. Schonfield, in his translation of the NT called The Original New Testament says the following on the back dust jacket. "Here in the Greek word Christos (Christ) has carelessly been set down by a scribe in place of chrestos (useful), which is called for by the context." In the footnote for the verse Schonfield says the following. "By a scribal error Christos was substituted for chrestos. The mistake was easy since Chrestos, meaning useful, was a well-known proper name. The Roman historian Suetonius once referred to Christus as Chrestus."
Regarding The Shepherd of Hermas it was indeed included in some ancient New Testament Bibles. See https://en.wikipedia.org/wiki/The_Shepherd_of_Hermas which says the following. "The Shepherd was very popular amongst Christians in the 2nd, 3rd, and 4th centuries. It is found in the Codex Sinaiticus, and it is listed between the Acts of the Apostles and the Acts of Paul in the stichometrical list of the Codex Claromontanus." The Shepherd of Hermas is not included in modern Greek Orthodox, Roman Catholic, Anglican, and Protestant Bibles.