"and some of you they will put to death; . . . But not a hair of your head will perish."

Adam Elsheimer,
The Stoning of Saint Stephen (1603/1604),
Scottish National Gallery

"and some of you they will put to death [(θανατώσουσιν)];… But not a hair of your head will perish [(ἀπόληται)]."

Lk 21:16, 19 RSV. "By your endurance [unto death] you will gain [(κτήσασθε)] your lives [(ψυχὰς)]" (v. 18); "whoever loses [(ἀπολέσῃ)] his life [(ψυχὴν)] for my sake will find it" (Mt 16:25); etc.