There are only two ways of accomplishing education, that is, of lifting out of ignorance. One is through verbal instruction; the other is through demonstration.
Typically these two methods are combined in various proportions. We all begin ignorant of carpentry, for example, and our ignorance is lifted by someone showing us a mitered joint and telling us how it works, by holding up a model buttress and describing where the gravitational forces lean upon it. And so, little by little, we learn carpentry.
For some sorts of education – learning how to box, say, or to swim, or to kiss – the education leans very heavily on the showing; in teaching history or astrophysics, say, the verbal instruction takes most of the responsibility.
“Sinfulness” is a variety of ignorance, and salvation from it consists in education, the education, both verbal and demonstrative, that Christ provides. That is what is meant by Christ saving us from our sins.
Our salvation through Christ is not like being plucked from a leaky boat. It’s like being taught how to patch holes, and how to swim.