Here's Marquart on Corporate Worship.
A few quotes from the above clip:
- "If faith is all that is essential, then the essence of corporate worship is the celebration of those things which kindle faith and which build it, therefore, the Gospel and the Sacrament."
"That means that, from antiquity on, preaching and the Eucharist have constituted the Divine Service."
"Corporately, worship is, first of all, preaching and the Sacrament by which the faith is given us and confirmed. And out of that, then, comes the praise and thanksgiving which is a result of what God gives us."