These things confirm our previous declaration; for, when he calls unbelieving and unbaptized persons heathen, and, on the other hand, pronounces those who had been instructed in the faith, and baptized upon it, disciples of Christ, without remarking whether they were born of Christian, or of heathen parents, he declares thereby, that it is not birth, but unbelief and absence of baptism, which constitutes one a heathen, and that not Christian parentage, but faith and baptism, make one a Christian; which well accords with the words of Paul, Gal. 3:26–28: “For ye are all the children of God by faith in Christ Jesus. For as many as have been baptized into Christ have put on Christ. There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.” Again, the fact that Optatus, as Vicecomes writes, was a catechist, indicates that at the place where he was teacher it was the custom, to teach the candidates for baptism the catechism, that is, to instruct them in the faith, before they were baptized; hence these candidates were called catechumens. NOTE.--Damascenus writes that “at this time, A. D. 370, the Gospel was preached in all the world, not by the force of arms, nor by subjugating its adversaries through war, but by a handful of poor, naked, and martyred people, that is, by patience and faith. For, how could the church have martyrs, if she made martyrs?” _Damasc., 3 Cent., cap. 33. P. J. Twisck, Chron., 4th book, page 116, col. 2._ _A. D. 380._--Gregory of Nazianzus, in Cappadocia, born of Christian parents, was not baptized until he was in his twentieth year; concerning which, Jacob Mehrning gives the following account: “His father, Bishop at Nazianzus, and also called Gregory, and his mother Nonna, a pious woman of Christian parentage, knew nothing of infant baptism, for they did not have their son (Gregory) baptized in his infancy. His baptism, according to history, did not take place until he was in his twentieth year. _Bapt. Hist., page 354._ Also, _H. Mont. Nietigh., page 62_. In order to show still further, how vain and useless infant baptism was deemed at that time, by various pious and learned men, and how baptism was even deferred till late in life, we will adduce one or two brief examples.[105] [105] About this time (A. D. 380), Ambrose taught that the heathen worshiped wood, because they judged it to be the image of God; but, says he, “God’s image is invisible.” _Tom. 4, in Psal. 118, Ser. 10. Samuel Veltius, in Geslacht-register, page 119._