When sin summons sinner-soldiers to itself, it does not declare, "Come to me, serve under my banner, and receive death from me for this." Rather, it covers both itself and its consequences with various seductive names and apparitions. Thus the one who rushes toward it thinks he will be immersed in a sea of blessedness.
This sinful deceit is so great that even after every sin proves such hope false, sinners do not cease hoping that they will receive this blessedness. Only one who has managed to come out of this sinful abyss sees that the wages of sin are death: death of soul, death of body, and eternal death.
But the gift of God is eternal life. The king opposite to sin is righteousness, or the God of righteousness. He has His own soldiers, the workers of righteousness. One might expect the Apostle to say, "the wages of righteousness," or, "God's wages for righteousness." Instead he said, "the gift of God."
Why so? Because eternal life will indeed be the portion of those who served under the banner of righteousness and labored in its work. Yet the recompense for it will not be measured by our righteousness, but by the boundless goodness of God.
Therefore it is more fitting to call it a gift than a reward for righteousness, although it will be given on the condition of righteousness. The very ordering of eternally blessed life, as well as the means of attaining it, are gifts of God's goodness. Here everything is the gift of God.
Blessed Theodoret writes: "Here, he said, it is not a reward, but a gift, because eternal life is God's gift. Even if someone had advanced in the highest righteousness, eternal blessings are not equal in weight to temporal labors."
Chrysostom says: "Having said that death is the recompense for sin, the Apostle did not keep the same order when he began to speak of eternal life. He did not say, 'It is the reward for your merits,' but, 'the gift of God.' By this he teaches that we were not freed by ourselves, and that we received neither a debt, nor a reward, nor a recompense for labors. On the contrary, all this is the work of goodness. From this the superiority of grace is clear. It not only freed us and improved our lot, but did all this without our exertions and labors. It not only freed us, but bestowed much more. It bestowed this through the Son."
In Christ Jesus our Lord. Eternal life is the crown of the ordering of our salvation in the Lord Christ. Yet the Lord Jesus Christ Himself, the incarnate Son of God, is for us the gift of the goodness and love of the all-good God. He so loved the world that He gave His only-begotten Son for us.
Therefore eternal life also is God's gift to us in Him who was first given. The way into eternal life was closed, and the door into it was shut. The Lord Jesus Christ first passed along this way and opened the entrance. He passed by the new and living way and entered within the veil.
After Him all who have believed in Him, and who have remained faithful to the laws of faith, now go there also. He Himself promised that where He is, there His servant will be also.