Hebrews 7:3 (KJV) Without father, without mother, without descent, having neither beginning of days, nor end of life; but made like unto the Son of God; abideth a priest continually.
Some religions call Mary the mother of God because she gave birth to Jesus. This passage is talking about Jesus and says he is without father and without mother. The flesh of Jesus had no genetic information from a human father and had no genetic information from a human mother. He was supernaturally conceived. Mary is not the mother of God.