Tertullian Against Marcion Book V and hills and mountains may be filled up and levelled, and the crooked and the rough ways be made straight and smooth[109] Tertullian On Repentance John holds not his peace, saying, "Enter upon repentance, for now shall salvation approach the nations"[9] 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] Origen Commentary on John Book VI "If any man thirst, let him come unto Me and drink." He it was. too, who said,[59]