Reference

Psalm 124:1-5 (NIV)

If the Lord had not been on our side—
    let Israel say—
if the Lord had not been on our side
    when people attacked us,
they would have swallowed us alive
    when their anger flared against us;
the flood would have engulfed us,
    the torrent would have swept over us,
the raging waters
    would have swept us away.