“He hath said…”- Hebrews 13:5

What power resides in “Thus saith the Lord!” The man who can grasp by faith, “He hath said,” has an all-conquering weapon in his hand. What doubt will not be slain by this two-edged sword? What fear is that which shall not fall smitten with a deadly wound before this arrow from the bow of God’s covenant? Will not the distresses of life and the pangs of death, will not the corruptions within and the temptations without, will not the trials from above and the temptations from beneath all seem but light afflictions when we can hide ourselves behind the bulwark of “He hath said?” Whether for delight in our quietude, or for strength in our conflict, “He hath said” must be our daily resort.

Hence, let us learn, my brethren, the extreme value of searching the Scriptures. There may be a promise in the Word which would exactly fit your case, but you may not know of it, and therefore miss its comfort. You are like prisoners in a dungeon, and there may be one key in the bunch which would unlock the door, and you might be free; but if you will not look for it you may remain a prisoner still, though liberty is near at hand. There may be a potent medicine in the great pharmacopia of Scripture, and you may still remain sick, though there is the precise remedy that would meet your disease, unless you will examine and search the Scriptures to discover what “He hath said.” Should we not, beside reading Scripture, store our memories richly with the promises of God?  ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0477.cfm