Written assignment
Distinguish the invisible from the visible church (25.1-2) in a short table: who belongs, what marks it, what Christ gives it. Then explain why 25.4-5 say that even the purest churches are subject to mixture and error, and how a member should respond (25.5-6, Belgic arts. 28-29).
Do this work on your own and keep it with your notes. Submitting written work for review is open only in the school's own classes; for this course it is not available yet.