And God is able to make all grace abound toward you, that you, always having all sufficiency in all things, may have an abundance for every good work. – 2 Corinthians 9:8

So look day by day for fresh grace. Frequently, the Christian wants to have grace enough for a month vouchsafed to him in one moment. “O!” he says, “what a host of troubles I have coming-how shall I meet them all? O! that I had grace enough to bear me through them all! “My dear friends, you will have grace enough for your troubles, as they come one by one. “As thy days, so shall thy strength be;” but thy strength shall never be as thy months, or as thy weeks. Thou shalt have thy strength as thou hast thy bread. “Give us this day our daily bread.” Give us this day our daily grace. But why is it you will be troubling yourself about the things of to-morrow? The common people say, “Cross a bridge when you come to it.” That is good advice. Do the same. When a trouble comes, attack it, and down with it, and master it; but do not begin now to forestall your woes. “Ah! but I have so many,” says one. Therefore I say, do not look further before thee than thou needest. “Sufficient unto the day is the evil thereof.” Do as the brave Grecian did, who, when he defended his country from Persia, did not go into the plains to fight, but stood in the narrow pass of Thermopylae; there, when the myriads came to him, they had to come one by one, and he felled them to the earth. Had he ventured into the plain he would have been soon devoured, and his handful would have been melted like a drop of dew in the sea. Stand in the narrow pass of to-day, and fight thy troubles one by one; but do not rush into the plains of tomorrow, for there thou wilt be routed and killed. As the evil is sufficient so will the grace be. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0131.cfm