Isaiah 26:1-4King James Version (KJV)
26 In that day shall this song be sung in the land of Judah; We have a strong city; salvation will God appoint for walls and bulwarks.
2 Open ye the gates, that the righteous nation which keepeth the truth may enter in.
3 Thou wilt keep him in perfect peace, whose mind is stayed on thee: because he trusteth in thee.
4 Trust ye in the Lord for ever: for in the Lord Jehovah is everlasting strength: