The water would have overpowered us; the current ¹  would have overwhelmed ²  us. ³ 

I sink into the deep mire where there is no solid ground; ¹  I am in ²  deep water, and the current overpowers me.

Don’t let the current overpower me! Don’t let the deep swallow me up! Don’t let the pit ¹  devour me! ² 

You threw me ¹  into the deep waters, ²  into the middle ³  of the sea; ⁴  the ocean current ⁵  engulfed ⁶  me; all the mighty waves ⁷  you sent ⁸  swept ⁹  over me.