Both the one who makes people holy and those who are made holy are of the same family. So Jesus is not ashamed to call them brothers and sisters.
He says, “I will declare your name to my brothers and sisters; in the assembly I will sing your praises.”
And again, “I will put my trust in him.”And again he says, “Here am I, and the children God has given me.”
Since the children have flesh and blood, he too shared in their humanity so that by his death he might break the power of him who holds the power of death—that is, the devil—