divine deposit, it is for the supreme authority of the Church alone to approve or define those things required for their validity. CAN. 670 §1.† Catholic Christian faithful can for a just reason attend the liturgical worship of other Christians and take part in the same, observing those things established by the eparchial bishop or by a higher authority by reason of the degree of communion with the Catholic Church. §2.† If non-Catholic Christians lack a place in which divine worship can be celebrated