IV Maccabees 7:13

13 And, what is most wonderful, though an old man, though the labours of his body were now spent, and his fibres were relaxed, and his sinews worn out, he recovered youth.

IV Maccabees 7:13 In-Context

11 For as father Aaron, armed with a censer, hastening through the consuming fire, vanquished the flame-bearing angel,
12 so, Eleazar, the descendant of Aaron, wasted away by the fire, did not give up his reasoning.
13 And, what is most wonderful, though an old man, though the labours of his body were now spent, and his fibres were relaxed, and his sinews worn out, he recovered youth.
14 By the spirit of reasoning, and the reasoning of Isaac, he rendered powerless the many-headed instrument.
15 O blessed old age, and reverend hoar head, and life obedient to the law, which the faithful seal of death perfected.

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