Let the peoples renew their strength.Isaiah 41:1
All things on earth need to be renewed. No created thing continues by itself. "You renew the face of the ground,"1 was the psalmist's utterance.
Even the trees, which wear not themselves with care, nor shorten their lives with labor, must drink of the rain of heaven and draw from the hidden treasures of the soil. The cedars of Lebanon, which God has planted, only live because day by day they are full of sap freshly drawn from the earth. Neither can man's life be sustained without renewal from God. As it is necessary to repair the body by the frequent meal, so we must repair the soul by feeding upon the Book of God, or by listening to the preached Word, or by the soul-fattening table of the ordinances.
How depressed are our graces when means are neglected! What poor starving souls they are who live without the diligent use of the Word of God and secret prayer! If our piety can live without God it is not of divine creating; it is but a dream; for if God had begotten it, it would wait upon Him as the flowers wait upon the dew.
Without constant restoration we are not ready for the perpetual assaults of hell, or the stern afflictions of heaven, or even for the strife within. When the whirlwind shall be loosed, woe to the tree that has not sucked up fresh sap and grasped the rock with many inter-twisted roots.
When tempests arise, woe to the mariners that have not strengthened their mast, nor cast their anchor, nor sought the haven. If we suffer the good to grow weaker, the evil will surely gather strength and struggle desperately for the mastery over us; and as a result a painful desolation and a lamentable disgrace may follow. Let us draw near to the footstool of divine mercy in humble entreaty, and we shall realize the fulfillment of the promise, "They who wait for the LORD shall renew their strength."2
1) Psalm 104:30
2) Isaiah 40:31