John Chrysostom

"That, whether we wake or sleep, we should live together with Him. Wherefore exhort one another, and build each other up, even as also ye do."

And again, "whether we wake or sleep"; by sleep there he means one thing, and here another. For here, "whether we sleep" signifies the death of the body; that is, fear not dangers; though we should die, we shall live. Do not despair because thou art in danger. Thou hast a strong security. He would not have given His Son if He had not been inflamed by vehement love for us. So that, though thou shouldest die, thou wilt live; for He Himself also died. Therefore whether we die, or whether we live, we shall live with Him. This is a matter of indifference: it is no concern of mine, whether I live or die; for we shall live with Him.