Carl Trueman, in his lectures on the Reformation, points out that though Luther said in 1520 that liturgy should be in the vernacular, he didn’t make that change until 5 years later, in 1525.
Why wait 5 years before making a change Luther was convicted was necessary?
“People are disturbed enough by what’s going on. The game of Christian education is to get people to where they need to be. It is not to disturb them, it’s to draw them gently to where they need to be.”
Trueman says that for Luther, the pastor should:
“use the language with which people are familiar, but we fill it with new content, in a new context. If you like, we slowly but surely subvert them…
…You don’t go in and hammer people with the new jargon. What you do is use the language they’ve got, but you slowly and surely transform it into meaning what you want it to mean.”