God has no mother.
But Jesus of Nazareth the Christ DOES.
Idiot.
But Jesus Christ Who is at once fully human [from the aspect of His Incarnation as the human person Jesus of Nazareth] as well as fully God did.
Or maybe I just could put it, Jesus of Nazareth has a Mother. All human beings do.
The Son of God was begotten of the Father (no mother involved). The Son of Man was begotten by the Holy Spirit, in the person of Mary, a human mother.
At least, that's what it looks like to me, FWIW.