Blessed be the God and Father of our Lord Jesus Christ… – Ephesians 1:3

Think not that we shall ever understand the high relationship between the first and second Persons of the blessed Trinity, the Father and the Son. We speak of eternal filiation, which is a term that does not convey to us any great meaning; it simply covers up our ignorance. How God is the Father of our Lord Jesus Christ as God, we do not know; and perhaps to wish to gaze into this tremendous mystery were as great a folly as to look at the sun, and blind ourselves with its brilliance. It is so; that ought to be enough for us. God the Father is the Father of Jesus Christ as to His divine nature: “Thou art My Son; this day I have begotten Thee.” He is also His Father as to the human side of His nature. He was begotten of the Holy Ghost. That body of His, that human life, came of God, not of Joseph, not of man. Born of a woman, God sent forth His Son; but He was His Son then. It was God’s Son that was born at Bethlehem. Gabriel said to the Virgin Mary, “That holy (One) which shall be born of thee shall be called the Son of God.” Now take the two natures of their wondrous blending in the person of the Lord Jesus Christ, and you see how the great God is the God and Father of our Lord Jesus Christ. Yet, sweet thought, he is my Father, too; my Father is Christ’s Father. Jesus Christ’s Father is our Father, and He teaches us all to call Him, “Our Father, which art in heaven.” Often in prayer He said, “Father”; and He bids us say the same, putting the plural pronoun before it, “Our Father.” Now will you not bless the Lord, who is the God and Father of our Lord Jesus Christ? Do you not feel a glowing in your hearts, as you think of the near and dear relationship into which you are brought through Jesus Christ? The God of Jesus Christ, the Father of Jesus Christ, is my God, my Father, too. Blessed, blessed, blessed, for ever blessed be that dear name! ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/2266.cfm