⁶ They come out at night,
    snarling like vicious dogs
    as they prowl the streets.
⁷ Listen to the filth that comes from their mouths;
    their words cut like swords.
    “After all, who can hear us?” they sneer.
⁸ But Lord, you laugh at them.
    You scoff at all the hostile nations.
⁹ You are my strength; I wait for you to rescue me,
    for you, O God, are my fortress.
¹⁰ In his unfailing love, my God will stand with me.
    He will let me look down in triumph on all my enemies. Psalm 59:5-11

Use adjectives to describe what kind of fortress God is.