At His crucifixion on Calvary, Jesus gave His mother Mary to His apostle
John’s care. That would have been a gross injustice and insensitivity to
other children--blood brothers and sisters--had they existed. Semitic custom
would have dictated that to give His Mother’s care outside the immediate
family to have been highly unlikely. In effect what Jesus asked John to do
was to be Mary’s son after He died! How unusual is that had there been
other sons?