Isaiah 35:8

And an highway shall be there and a way, a causeway such as was used by armies, the valleys being filled up and all obstructions removed, and it shall be called The Way of Holiness, the holy way, where the saints of the Lord were found; the unclean shall not pass over it, only those consecrated by the Lord; but it shall be for those, such as have, by the grace of God, found the way of sanctification; the wayfaring men, though fools, shall not err therein, that is, even the most unlearned will he able to follow the way of salvation as set forth in the Word of God.