If a son shall ask bread of any of you that is a father,.... Our Lord illustrates and confirms what he had said before by an instance common among men: the relation between a father and a son is natural, and it is very near; and it is usual for a son, when hungry, and at the proper times of meals, to ask bread of his father: and when he does,will he give him a stone?
should he do so, he would show that his heart was as hard, or harder than the stone he gives:or if he ask a fish, will he, for a fish, give him a serpent?