“Let God be magnified,” – Psalm 40:16;70:4
“Let God be magnified,” for it is He that saved us, and not we ourselves. We trace our salvation not to our ministers, nor to any pretentious priesthood. None can divide the honors of grace, for the Lord alone hath turned our captivity. He decreed our salvation, planned it, arranged it, executed it, applied it, and secures it. From beginning to end salvation is of the Lord, therefore, let God be magnified. Moreover, the Lord wrought salvation that He might be magnified thereby. It was God’s object in salvation to glorify His own name. “Not for your sakes do I this, O house of Israel.” Truly we desire that the Lord’s end and purpose should be fully subserved, for it is His well-deserved due. O Thou who hast bled upon the cross, may Thy throne be glorious! O Thou who wast despised and rejected of men, be Thou extolled, and be Thou very high. Thou deservest all glory, great and merciful God. Such a gift, such a sacrifice, such a work; Thou oughtest indeed to be lauded and had in honor by all the intelligent universe. The saying is settled deep in truth and established in right.
This saying is naturally suggested by love. It is because we love His salvation that we say, “The Lord be magnified.” You cannot love God without desiring to magnify Him, and I am sure that you cannot know that you are saved without loving Him. For here is a wonder, a central wonder of wonders to many of us, that ever we in particular were saved. I do not think I could be so wonder-struck and amazed at the salvation of you all as at my own. I should know it to be infinite mercy that saved any one of you, or all of you, I say I should know it, but in my own case I feel it is an unspeakable and inconceivably great mercy which has saved me; and I suppose each brother here, each sister here will feel a special love to Christ from the fact of being himself or herself an object of His love. We never sing, I am sure, with warmer hearts any hymn in our hymn-book than that one-
“What was there in us that could merit esteem,
Or give the Creator delight?
Twas even so Father, we ever must sing,
For so it seemed good in Thy sight.”
~ C.H. Spurgeon
https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1013.cfm