…and I will be to them a God, and they shall be to Me a people -Hebrews 8:10

…the poorest Christian possesses more than the richest unbeliever. You shall set before me now the pauper who is a believer, and the emperor who has no faith in Christ, and I am persuaded that the poor, aged pauper would not exchange her lot though the imperial purple should be offered her. She would refuse to leave her Savior though the world were offered her. While the poor believer feels that his God is his portion he despises rather than covets the glories of the world. Brethren in Christ, you know right well that you possess the covenant of grace, a covenant rich beyond comparison…More than that, you have Christ in the covenant, and Christ is all. All the glories of His immaculate manhood and His infinite Godhead, and all His merits, and all His conquests, and all His glories, all are yours, seeing you are His. And what is most of all, God is yours. “I will be to them a God, and they shall be to Me a people.” And having God to be your God, Providence is yours-all things work together for your good. Life’s goods are yours and so are its ills; this world is yours and worlds beyond the river; time and eternity, things present and things to come, life and death, all are yours. And yet no good thing was yours by natural inheritance…they are all the gifts of the sovereign grace of God. Brethren, we are all debtors: who shall tell how much we owe?

Depths of mercy, that I, a sinner, should ever have a hope of heaven, but oh, heights of mercy! that I should be adopted into the family of God, and made a joint heir with Christ Jesus of all the heritage of the Firstborn of God; to have all that God is, and all that God has, to be the portion of my cup, this is grace indeed! My cup runneth over! Bless the Lord, O my soul!  ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1029.cfm