Pindar, Olympian 2.15-17

Not even time, the father of everything, can undo something, just or unjust, once it has been done

τῶν δὲ πεπραγμένων

ἐν δίκᾳ τε καὶ παρὰ δίκαν ἀποίητον οὐδ’ ἄν

Χρόνος ὁ πάντων πατὴρ

δύναιτο θέμεν ἔργων τέλος·

The full text.