Clement of Alexandria Exhortation to the Heathen He will deny that he is Christ, but will profess himself to be "a voice crying in the wilderness." Who, then, is John?[15] Tertullian An Answer to the Jews as being he who not merely "prepared His ways in the desert,"[177] Pseudo-Gregory Thaumaturgus Fourth Homily I cannot keep silence while Thou art present, for I am a voice; yea, I am the voice, as it is said, of one crying in the wilderness, Prepare ye the way of the Lord.[9]