Psalms 124:4
then the floods would have engulfed us,
What it says
Then the flood would have engulfed them and the torrent passed over them.
What it is doing
This verse shifts the danger into the image of overwhelming waters.
In context
1A song of ascents. Of David. 2if the LORD had not been on our side 3when their anger flared against us, 4then the floods would have engulfed us, 5then the raging waters 6Blessed be the LORD, 7We have escaped like a bird from the snare of the fowler; 8Our help is in the name of the LORD,