(i)         instruction (i.e., catechetics)

(ii)        the washing

(iii)       the sermon

(iv)       the discussion

(v)        the meal

(vi)       the diaconate

(vii)      the meeting

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(viii)     office

(ix)       church polity (church order)

(Berkhof maintains that these lattermost two serve to make the other seven operative.)