FROM the Rock of salvation proceeded the well of salvation: Nothing can be more grateful and refreshing to the weary traveller than water—nothing so comfortable to the soul as grace. The water refreshed and strengthened the children of Israel in the barren desert. In like manner, the salutary streams that flow from the river of life make glad the city of God. With joy, therefore, we may now draw water out of the wells of salvation. The promises of the gospel are full of consolation to sinners, and the waters of the sanctuary are for health or medicine.