Luke 3:4

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]