45. The Lord’s Supper shall be celebrated at least every month, and everyone at their location should strive that if the whole congregation cannot participate every Sunday (which most corresponds to Christ’s ordinance and to apostolic custom and is greatly desired), at least it should happen as often as possible…

General Synod of Herborn (1586), in Reformed Confessions of the 16th and 17th Centuries in English Translation, ed. James T. Dennison, Jr., 3.626.