The means of grace—preaching the Gospel and the sacraments—are tools God uses to nourish believers, though they are not the source of life itself. Sacraments visibly communicate the Gospel and are given to strengthen weak faith, just as Abraham received circumcision as a seal of God’s promise amid his doubts. While sacraments are a means of grace, the preaching of the Gospel remains central, proclaiming God’s power to bring life from death like Ezekiel standing over the valley of dry bones. Ultimately, both the Word and sacraments point to and nourish us in the life-giving power of Christ through the Spirit, who sustains His people and the Spirit who raises Christ from the dead.  This is the power at work in us.