Matthew 12:11
He said to them: which one of you who has a sheep, if it falls into a pit on the Sabbath, will not take hold of it and lift it out? Jesus' argument from the lesser to the greater: the Pharisees who would rescue a fallen sheep on the Sabbath — a practical necessity that their own traditions permitted in cases of animal suffering — must apply the same logic to a suffering human being. The qal vachomer (light to heavy) argument is one of the standard rabbinic forms of legal reasoning.