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

When we see God in connection with Christ, we see God through Christ; when we see God in Christ, then our hearts are all aflame, and we burst out with, “Blessed be the God and Father of our Lord Jesus Christ.” The infinite Jehovah, who can conceive Him? “Our God is a consuming fire.” Who can draw near to Him? But in the Mediator, in the Person of the God, the Man, in whom we find blended human sympathy and divine glory, we can draw nigh to God. There it is that we get our hands upon the golden harp-strings and resolve that every string shall be struck to the praise of God in Christ Jesus.

But note carefully that God is described here as the God of our Lord Jesus Christ. When Jesus knelt in prayer, He prayed to our God. When Jesus leaned in faith upon the promises, He trusted in God that He would deliver Him. When our Saviour sang on the Passover night, the song was unto God. When He prayed in Gethsemane, with bloody sweat, the prayer was unto our God. Jesus said to Mary at the sepulchre, “Go to My brethren, and say unto them, I ascend unto My Father, and your Father; and to My God, and your God.” How we ought to bless God when we think that He is the God whom our Redeemer blesses! This is the God who said of Christ, “This is My beloved Son, in whom I am well pleased.” Delightful thought! When I approach Jehovah, I approach the God of our Lord Jesus Christ. Surely, when I see His blood-stained footprints there on the ground before me, though I put my shoe off from my foot, for the place is holy ground, yet I follow with confidence where my Friend, my Saviour, my Husband, my Head has been before me; and I rejoice as I worship the God of our Lord Jesus Christ. ~ C.H. Spurgeon

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