Martin Luther and Theosis

In an early (1515) Christmas sermon, Martin Luther notes:
As the Word became flesh, so it is certainly necessary that the flesh should also become Word. For just for this reason does the Word become flesh, in order that the flesh might become Word. In other words: God becomes man, in order that man should become God. Thus strength becomes weak in order that weakness might become strong. The Logos puts on our form and figure and image and likeness, in order that He might clothe us with His image, form, likeness. Thus wisdom becomes foolish, in order that foolishness might become wisdom, and so in all other things which are in God and us, in all of which He assumes ours in order to confer upon us His [things]. (See: Luther and Theosis)

In a 1526 sermon Luther said: "God pours out Christ His dear Son over us and pours Himself into us and draws us into Himself, so that He becomes completely humanified (vemzenschet) and we become completely deified (gantz und gar vergottet, "Godded-through") and everything is altogether one thing, God, Christ, and you."