Jesus returns home, i.e., to the place where he stayed in Capernaum (see note on 2:1).
3:21 The members of Jesus’ earthly family (his mother and half brothers and sisters) believe he is out of his mind (see John 7:5) on account of all that has happened. Besides his opponents, Jesus now also has to contend with unbelieving family members. He will never forsake his relationship with his physical family, yet he will always pursue the call of God above all else (see Mark 3:31–35). (Some of Jesus’ brothers did later come to faith in him; see note on 1 Cor. 9:4–5.)
