WPNT(i)
4 as it is written in the book of the words of Isaiah the prophet, saying: “A voice calling out: ‘Prepare the way of the Lord in the wilderness, make His paths straight.
5 Every ravine will be filled up, and every mountain and hill will be leveled; the crooked parts of the roads will be straightened out, and the rough parts will be smoothed out;
6 and all flesh will see the salvation of God.’”