That is, He prepared them not for sin, which man began not by divine predestination, but by his own will and evil desire, and completed by evil action. For desire, when conceived, produced sin, and sin, when accomplished, brought forth death.
Therefore enemies are not predestined to the first death of the soul, but to the second, that is, to the lake of fire and brimstone (see Rev 20:10, 14-15; Rev 21:8). Concerning it blessed John says: “The devil who deceived them was cast into the lake of fire and brimstone” (Rev 20:10).
And elsewhere: “Death and Hades were cast into the lake of fire” (Rev 20:14). This second death is the lake of fire, and whoever was not written in the book of life was cast into the lake of fire.
Again he says: “But as for the cowardly and unbelieving, the polluted and murderers, fornicators and sorcerers, idolaters and all priests, their portion shall be in the lake that burns with fire and brimstone. This is the second death” (Rev 21:8).
He calls that death the second which follows from the sentence of the just Judge, not the one which precedes in the evil desire of sin. Thus the first death, which man brought upon himself, is the cause of the second. The second death, by which God repays man, is the punishment for the first.