Thanks for the explanation on Lutheran sacramental theology....I’ve been curious about this myself lately.
A question tho..I can see clearly the rationale behind reason #1 (clear case in the Bible) and #3 (visible sign).
But why #2, the “remission of sins” stipulation?
See this for an explanation of the LCMS.
http://en.wikipedia.org/wiki/Lutheran_Church_-_Missouri_Synod
And this for an explanation of the Sacraments.
http://en.wikipedia.org/wiki/Sacrament