“Encourage the exhausted, and strengthen the feeble. Say to those with anxious hearts ‘Take courage, fear not. Behold your God will come with vengeance; the recompense of God will come, but he will save you. Then the eyes of the blind will be opened and the ears of the deaf will be unstopped. Then the lame will leap like a deer, and the tongue of the mute will shout for joy. For the waters will break forth in the wilderness and streams in the Arabah. The scorched land will become a pool and the thirsty ground springs of living water; in the haunt of jackals, its resting place, grass becomes reeds and rushes.
A highway will be there, a roadway, and it will be called the Highway of Holiness. The unclean will not travel on it. But it will be for him who walks that way, and fools will not wander on it. No lion will be there, nor will any vicious beast go upon it; there will not be found there. But the redeemed of the Lord will walk there, and the ransomed of the Lord will return and come to Zion with everlasting joy upon their heads. They will find gladness and joy. And sorrow and sighing will flee away.” (Isaiah 35: 3-10)
These verses should actually be in hymn form, they are in my NAS. They are full of promise but in some aspects might seem discouraging. I say that because the verses say that nothing unclean can be on this Highway. But remember it is the redeemed that are there. They are also referred to as the ransomed. This is a picture of the Church; those that the Lord Jesus Christ has redeemed.
J. Alec Motyer writes in the Tyndale commentary on Isaiah:
"The Lord never reduces his standards to match the weaknesses of his people; he raises his people to the height of his standards. How this will happen Isaiah does not say; he simply leaves us to assume that such meeting of the requirements of the law is achieved for the Lord’s people by his work of salvation (4f) and redemption (9d, 10a), for the redeemed of the Lord walk there! …Those disqualified from walking the Way of Holiness are therefore self-disqualified through failure to use the means of grace available to them."
These verses truly speak to the renewal of the Church. They also speak about God's love and protection of his people. He is the Redeemer and Sanctifier.