The one who sows in his flesh will reap a harvest of corruption, but the one who sows in the Spirit will reap from the Spirit the reward of eternal life.
Gaze upon the birds in the sky. They do not sow or reap or store in barns, and yet your heavenly Father feeds them. Are you not of far greater value than they?
However, now that you have been freed from sin and bound to the service of God, the benefit you receive is sanctification, and the end is eternal life.