John 19:26

Woman, behold, etc.] Although bearing the sins of the whole world, Jesus was not forgetful of human ties, and solemnly commended his mother to the care of the beloved disciple, St. John. St. John was comparatively wealthy, and was, moreover, the Virgin's nephew, so that the arrangement was in every way suitable. She was not commended to our Lord's 'brethren,' probably because they were not her own children, and were not believers: see on Matthew 12:46. It is clear that St. Joseph was by this time dead. Unto his own home] This implies that St. John had a separate establishment at Jerusalem. This would help to explain his acquaintance with Annas (John 18:15), and his special information about our Lord's ministry at Jerusalem. When our Lord visited Jerusalem, St. John was probably His host.