he saved us, not because of deeds done by us in righteousness, but in virtue of his own mercy, by the washing of regeneration and renewal in the Holy Spirit, which he poured out upon us richly through Jesus Christ our Savior, so that we might be justified by his grace and become heirs in hope of eternal life. The saying is sure. Titus 3:5–8a (RSV)
This is most certainly true. Any Lutheran who was even partially awake in confirmation class will recognize that short sentence. Luther adds it like an 'amen' at the end of each explanation of the three articles of the Apostle's Creed.
And Luther is correct in doing so. The witness of the Ecumenical Creeds, Apostle's, Nicene, and Athanasian Creeds is most certainly true. They confess to one true God, beside whom there is no other.
It may never have occurred to you, but God does not need us to be God. If God had never chosen to call all things into being, He would still be God. Out of His eternal, divine love, God creates all things.
Of all the myriads of creatures, God has given us language so we might offer our praise of Him. He has given us each of our unique human being. None like us has ever been, nor will any arise after us.
God may not have needed us, but we are created in His image. We have tarnished, distorted that image by our sin. Still, by the washing of regeneration, through Holy Baptism, we become aware of Him, His love, and grace.