Mark 3:21 reveals his family's belief that he is out of his mind—the reason they come to seize him in this scene.

Mark 6:3 lists Jesus' earthly family by name, contrasting the human identity he challenges here with his spiritual family.

Luke 2:49 shows twelve-year-old Jesus prioritizing his Father's business over his human family, anticipating this same priority in Mark.

John 7:3-5 reveals Jesus' brothers did not believe in him, explaining the family tension behind his question.

Matthew 12:48 is the parallel account where Jesus asks the same question about his true family.

Deuteronomy 33:9 praises Levi for disregarding his parents in loyalty to God, a precedent for Jesus' redefinition of family here.

In Matthew 28:10, Jesus calls his disciples 'brothers' after resurrection, redefining family as he hinted in Mark.