IV Maccabees 15:9-19

9 Not but that, on account of the excellent disposition to the law, her maternal affection toward them was increased.
10 For they were both just and temperate, and manly, and high-minded, and fond of their brethren, and so fond of their mother that even unto death they obeyed her by observing the law.
11 And yet, though there were so many circumstances connected with love of children to draw on a mother to sympathy, in the case of none of them were the various tortures able to pervert her principle.
12 But she inclined each one separately and all together to death for religion.
13 O holy nature and parental feeling, and reward of bringing up children, and unconquerable maternal affection!
14 At the racking and roasting of each one of them, the observant mother was prevented by religion from changing.
15 She beheld her children's flesh dissolving around the fire; and their extremities quivering on the ground, and the flesh of their heads dropped forwards down to their beards, like masks.
16 O thou mother, who wast tried at this time with bitterer pangs than those of parturition!
17 O thou only woman who hast brought forth perfect holiness!
18 Thy first-born, expiring, turned thee not; nor the second, looking miserable in his torments; nor the third, breathing out his soul.
19 Nor when thou didst behold the eyes of each of them looking sternly upon their tortures, and their nostrils foreboding death, didst thou weep!

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