IV Maccabees 5:16

16 We, O Antiochus, who are persuaded that we live under a divine law, consider no compulsion to be so forcible as obedience to that law;

IV Maccabees 5:16 In-Context

14 While the tyrant incited him in this manner to the unlawful eating of flesh, Eleazar begged permission to speak.
15 And having received power to speak, he began thus to deliver himself:
16 We, O Antiochus, who are persuaded that we live under a divine law, consider no compulsion to be so forcible as obedience to that law;
17 wherefore we consider that we ought not in any point to transgress the law.
18 And indeed, were our law (as you suppose) not truly divine, and if we wrongly think it divine, we should have no right even in that case to destroy our sense of religion.

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