Then shall I not be ashamed, when I have respect unto all your commandments.
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Augustine of Hippo
AD 430
6. "So shall I not be confounded, while I have respect unto all Thy commandments" (ver. 6). We ought to look upon the commandments of God, whether when they are read, or when they are recalled to memory, as a looking-glass, as the Apostle James saith. This man wisheth himself to be such, that he may regard as in a mirror the commandments of God, and may not be confounded; because he chooses not merely to be a hearer of them, but a doer. On this account he desireth that his ways may be made direct to keep the statutes of God. How to be made direct, save by the grace of God? Otherwise he will find in the law of God not a source of rejoicing, but of confusion, if he hath chosen to look into commandments, which he cloth not.
All. At the day of judgment, it will not suffice to have observed only some of the commandments. See St. Jerome, St. Ambrose, who all seem to follow Origen. (Calmet)
The breach of any law brings confusion. (Worthington)