Friendly Trial of the Grounds Tending to Separation
In his argument, he uses the example of Saga Za Ab, ambassador to Prester John, as an example of a Christian who has been unfairly discriminated against do to his deviation from the Catholic faith:
Although faith be one funifulus colligantiae, yet variety of opnions without pertinacy standeth with unity: but nothing is so contrary to the church as schisme and departure. This matter I will shut up with the saying of Zaga Bishop of Aethiope, and embassador of Prester John: It is a miserable thing that Christian strangers should be so shareply reproved, as enemies, as I have been here; and other things which concern not the faith. But it should be farre more convenient to support all Christians, be they Graecians, be they Armenians, be they Aethiopians, be they of any one of the seven Christian churches, with charity and love of Christ, and to permit them to live and converse amonst other Christian brethren without an injuirie, because that we are all infants of one baptisme. and do hold truly the true faith.
