Isaiah 26:1-5
1In 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.
2Open ye the gates, that the righteous nation which keepeth the truth may enter in.
3Thou wilt keep him in perfect peace, whose mind is stayed on thee: because he trusteth in thee.
4Trust ye in the LORD for ever: for in the LORD JEHOVAH is everlasting strength:
5For he bringeth down them that dwell on high; the lofty city, he layeth it low; he layeth it low, even to the ground; he bringeth it even to the dust.
(KJV)