Augustine of Hippo

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(Serm. in Mont. ii. 7.) There is here a difficulty created by the circumstance of there being many in the East, who do not daily communicate in the Lord’s Supper. And they defend their practice on the ground of ecclesiastical authority, that they do this without offence, and are not forbidden by those who preside over the Churches. But not to pronounce any thing concerning them in either way, this ought certainly to occur to our thoughts, that we have here received of the Lord a rule for prayer which we ought not to transgress. Who then will dare to affirm that we ought to use this prayer only once? Or if twice or thrice, yet only up to that hour at which we communicate on the Lord’s body? For after that we cannot say, Give us this day that which we have already received. Or will any one on this account be able to compel us to celebrate this sacrament at the close of the day?