IV Maccabees 5:25

25 Wherefore it is that we eat not the unclean; for believing that the law was established by God, we are convinced that the Creator of the world, in giving his laws, sympathises with our nature.

IV Maccabees 5:25 In-Context

23 Yet it instructs us in temperance, so that we are superior to all pleasures and lusts; and it exercises us in manliness, so that we cheerfully undergo every grievance.
24 And it instructs us in justice, so that in all our dealings we render what is due; and it teaches us piety, so that we worship the one only God becomingly.
25 Wherefore it is that we eat not the unclean; for believing that the law was established by God, we are convinced that the Creator of the world, in giving his laws, sympathises with our nature.
26 Those things which are convenient to our souls, he has directed us to eat; but those which are repugnant to them, he has interdicted.
27 But, tyrant-like, thou not only forcest us to break the law, but also to eat, that thou mayest ridicule us as we thus profanely eat:

The Brenton translation of the Septuagint is in the public domain.