While Jesus was speaking to the crowds, his mother and his brothers appeared outside, wishing to speak with him. Someone told him, “Your mother and your brothers are standing outside, asking to speak with you.” But he said in reply to the one who told him, “Who is my mother? Who are my brothers?” And stretching out his hand toward his disciples, he said, “Here are my mother and my brothers. For whoever does the will of my heavenly Father is my brother, and sister, and mother.” (Mt 12:46-50)
https://bible.usccb.org/bible/readings/071922.cfm
To do the will of God means we are members of God’s new family in Christ. As someone once said, “God is my father, Jesus is my brother, Mary is my mother—with relatives like that, I can’t be all bad!”