Now I say, That the heir, as long as he is a child, differeth nothing from a servant, though he be lord of all…Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ. – Galatians 4:1,7

Beloved, now are ye the sons of God, and ye have come to your majority: now are ye free to enjoy the honours and blessings of the Father’s house. Rejoice that the Holy Spirit dwells within you and prompts you to holiness; this is a far superior power to the merely external command and the whip of threatening. Now no more are you in bondage to outward forms, and rites, and ceremonies; but the Spirit of God teacheth you all things and leads you into the inner meaning and substance of the truth.

Believers are at this moment heirs, but what is the estate? It is God Himself! We are heirs of God! Not only of the promises, of the covenant engagements, and of all the blessings which belong to the chosen seed, but heirs of God Himself. “The Lord is my portion, saith my soul.” “This God is our God for ever and ever.” We are not only, heirs to God, to all that He gives to His firstborn, but heirs of God Himself… “I will be to them a God, and they shall be to Me a people.” Why, then, 0 believer, are you poor? All riches are yours. Why then are you sorrowful? The ever-blessed God is yours. Why do you tremble? Omnipotence waits to help you. Why do you distrust? His immutability will abide with you even to the end and make His promise steadfast. All things are yours, for Christ is yours, and Christ is God’s. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1435.cfm