"This is how much God loved the world: He gave his Son, his one and only Son. And this is why: so that no one need be destroyed; by believing in him, anyone can have a whole and lasting life."-- John 3:16, The Message
With Jesus lifting you, and embraced by his Paraclete as your life vest, it's not "sink or swim". He keeps you afloat in the coldest, deepest waters.
But first, you have to surrender to the water and drown.
An empty life vest with a line attached to it, thrown out into the turbulent water. "We're 'fishers of men', alright! Who knows, someday we might even CATCH one!"
Empty seats, and an empty life vest. "By golly, if they'll just come in the door, we're ready for 'em!"