But seek you first the kingdom of God, and His righteousness; and all these things shall be added unto you. -Matthew 6:33

When a man is anxious he cannot pray; when he is troubled about the world he cannot serve his Master, he is serving himself. If you could “seek first the kingdom of God and His righteousness,” beloved, “all things would then be added to you.” What a noble Christian you would be; how much more honorable you would be to Christ’s religion; and how much better you could serve Him.

“‘Tis mine to obey, ’tis His to provide”

You have been meddling with Christ’s business, you have been leaving your own; you have been trying the “providing” part and leaving the “obeying?” to somebody else. Now, you take the obeying part, and let Christ manage the providing. Come then, brethren, doubting and fearful ones, come and see your Father’s storehouse, and ask whether He will let you starve while He has stored away such plenty in His garner! Come and look at His heart of mercy, see if that will ever fail! Come and look at His inscrutable wisdom and see if that will ever go amiss: Above all, look up there to Jesus Christ your intercessor, and ask yourself, “while He pleads, can my Father forget me?” And if He remembers even sparrows, will He forget one of the least of His poor children? “Cast thy burden upon the Lord and He will sustain thee,” “He will never suffer the righteous to be moved.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0033.cfm