23 He said, I [am] [the] voice of one crying in the wilderness, Make straight the path of [the] Lord, as said Esaias the prophet.
John 1:23 Cross References - Darby
Isaiah 40:3-5
3 The voice of one crying in the wilderness: Prepare ye the way of Jehovah, make straight in the desert a highway for our God!
4 Every valley shall be raised up, and every mountain and hill shall be brought low; and the crooked shall be made straight, and the rough places a plain.
5 And the glory of Jehovah shall be revealed, and all flesh shall see [it] together: for the mouth of Jehovah hath spoken.
Matthew 3:3
3 For this is he who has been spoken of through Esaias the prophet, saying, Voice of him that crieth in the wilderness: prepare ye the way of [the] Lord, make straight his paths.
Mark 1:3
3 Voice of one crying in the wilderness, Prepare the way of [the] Lord, make his paths straight.
Luke 1:16-17
Luke 1:76-79
76 And *thou*, child, shalt be called [the] prophet of [the] Highest; for thou shalt go before the face of [the] Lord to make ready his ways;
77 to give knowledge of deliverance to his people by [the] remission of their sins
78 on account of [the] bowels of mercy of our God; wherein [the] dayspring from on high has visited us,
79 to shine upon them who were sitting in darkness and in [the] shadow of death, to guide our feet into [the] way of peace.
Luke 3:4-6
4 as it is written in [the] book of [the] words of Esaias the prophet: Voice of one crying in the wilderness: Prepare ye the way of [the] Lord, make straight his paths.
5 Every gorge shall be filled up, and every mountain and hill shall be brought low, and the crooked [places] shall become a straight [path], and the rough places smooth ways,
6 and all flesh shall see the salvation of God.
John 3:28
28 Ye yourselves bear me witness that I said, I am not the Christ, but, that I am sent before him.