They shall still bring forth fruit in old age. Nature decays but grace thrives. Fruit, as far as nature is concerned, belongs to days of vigour; but in the garden of grace, when plants are weak in themselves, they become strong in the Lord, and abound in fruit acceptable with God. Happy they who can sing this Sabbath Psalm, enjoying the rest which breathes through every verse of it; no fear as to the future can distress them, for their evil days, when the strong man faileth, are the subject of a gracious promise, and therefore they await them with quiet expectancy. Aged believers possess a ripe experience, and by their mellow tempers and sweet testimonies they feed many. Even if bedridden, they bear the fruit of patience; if poor and obscure, their lowly and contented spirit becomes the admiration of those who know how to appreciate modest worth. Grace does not leave the saint when the keepers of the house do tremble; the promise is still sure though the eyes can no longer read it; the bread of heaven is fed upon when the grinders fail; and the voice of the Spirit in the soul is still melodious when the daughters of music are brought low. Blessed be the Lord for this! Because even to hoar hairs he is the I AM, who made his people, he therefore bears and carries them. They shall be fat and flourishing. They do not drag out a wretched, starveling existence, but are like trees full of sap, which bear luxuriant foliage. God does not pinch his poor servants, and diminish their consolations when their infirmities grow upon them; rather does he see to it that they shall renew their strength, for their mouths shall be satisfied with his own good things. Such an one as Paul the aged would not ask our pity, but invite our sympathetic gratitude; however feeble his outward man may be, his inner man is so renewed day by day that we may well envy his perennial peace.