Parallel
Hebrews 9:17
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Διαθήκη γὰρ ἐπὶ νεκροῖς βεβαία, ἐπεὶ μήποτε ἰσχύει ὅτε ζῇ ὁ διαθέμενος.
because a will does not take effect until the one who made it has died; it cannot be executed while he is still alive.