Isaiah 26:1-4

New International Version - UK

We have a strong city;
    God makes salvation
    its walls and ramparts.
² Open the gates
    that the righteous nation may enter,
    the nation that keeps faith.
³ You will keep in perfect peace
    those whose minds are steadfast,
    because they trust in you.
⁴ Trust in the Lord for ever,
    for the Lord, the Lord himself, is the Rock eternal.