But where sin abounded, grace abounded much more so that as sin reigned in death, even so grace might reign through righteousness to eternal life through Jesus Christ our Lord. – Romans 5:20-21
When a man is made a child of God he does not have a stock of grace given to him with which to go on for ever, but be has grace for that day; and he must have grace for the next day, and grace for the next, and grace for the next, until days shall end, or else the beginning shall be of no avail. As a man does not make himself spiritually alive, so neither can he keep himself so. He can feed on spiritual food, and so preserve his spiritual strength; he can walk in the commandments of the Lord, and so enjoy rest and peace, but still the inner life is dependent upon the Spirit as much for its after existence as for its first begetting…No man of himself, even when converted, hath any power, except as that power is daily, constantly, and perpetually infused into him by the Spirit. But Christians often set up for independent gentlemen; they get a little stock of grace in hand, and they say, “My mountain standeth firm, I shall never be moved.” But ah! it is not long before the manna begins to be putrid. It was only meant to be the manna for the day, and we have kept it for the morrow, and therefore it fails us. We must have fresh grace.
“For day by day the manna fell;
O to learn that lesson well.”
~ C.H. Spurgeon