Augustine of Hippo
If Christ has lifted from us the weightiest of burdens concerning numerous cares—such as the requirement for circumcision, the sacrificial offering of animals, or the cessation of necessary work every Sabbath—opting instead for a spiritual comprehension of these matters, and having eliminated all physical representations, we are called to remain vigilant in the light of the very works that are symbolized (cf. 1 Cor. 10:4; 1 Thess. 5:6; Matt. 25:13). Can we then assert that the command does not pertain to us, which states that anyone who discovers something belonging to another that has been lost is to return it to its rightful owner?
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This principle, along with various similar directives, is given to those instructed to live in fairness and righteousness, particularly the Decalogue itself, etched on the two stone tablets, excluding the physical observance of the Sabbath which represents spiritual holiness and divine rest?