The body, “it is sown in weakness”, means that our bodies have limited strength, and that they must succumb to death even apart from the forces of corruption that violently destroy them. The measure of that strength is, “three score and ten”, or, “four score years” (Psalm 90:10). “As for man, his days are as grass: as a flower of the field, so it flouresheth” (Psalm 103:15). And, indeed, when the blasting wind passes over it, it is gone. But even when the hot wind does not violently break its tender stem, it cannot last. For a while it blooms, but its vitality is limited: soon it loses its beauty, and it withers away. Thus it is with man in his present state. The strength of his physical organism is limited. And there is nothing to renew it. He is like a candle that burns itself out. However it is raised in power. The body of the resurrection shall never be wanting in strength. It draws from a source of unlimited power and vitality. It will not gradually deteriorate. It shall renew its youth like the eagle’s. Always there shall be strength for the task. No one will ever say, “I am sick”, and no one will ever complain of being weary and exhausted. The source of this ever renewed and ever youthful strength is the risen Lord. With him the risen saints are united. From him, who is the Son of God, they draw their power. In everlasting youth they shall stand in the house of God to serve him day and night.