Matthew 7:10

And if thou doubt my affirmation, at any rate believe His example. "For what man is there of you," saith He, "whom if his son ask bread, will he give him a stone?" Because, as among men, if thou keep on doing so, thou art even accounted troublesome, and disgusting: so with God, when thou doest not so, then thou dost more entirely provoke Him. And if thou continue asking, though thou receive not at once, thou surely wilt receive. For to this end was the door shut, that He may induce thee to knock: to this end He doth not straightway assent, that thou mayest ask. Continue then to do these things, and thou wilt surely receive. For that thou mightest not say, "What then if I should ask and not receive?" He hath blocked up thy approach with that similitude, again framing arguments, and by those human things urging us to be confident on these matters; implying by them that we must not only ask, but ask what we ought. "For which of you is there, a father, of whom if his son shall ask bread, will he give him a stone?" So that if thou receive not, thy asking a stone is the cause of thy not receiving. For though thou be a son, this suffices not for thy receiving: rather this very thing even hinders thy receiving, that being a son, thou askest what is not profitable. Do thou also therefore ask nothing worldly, but all things spiritual, and thou wilt surely receive. For so Solomon, because he asked what he ought, behold how quickly he received. Two things now, you see, should be in him that prays, asking earnestly, and asking what he ought: "since ye too," saith He, "though ye be fathers, wait for your sons to ask: and if they should ask of you anything inexpedient, ye refuse the gifts; just as, if it be expedient, ye consent and bestow it." Do thou too, considering these things, not withdraw until thou receive; until thou have found, retire not; relax not thy diligence, until the door be opened. For if thou approach with this mind, and say, "Except I receive, I depart not;" thou wilt surely receive, provided thou ask such things, as are both suitable for Him of whom thou askest to give, and expedient for thee the petitioner. But what are these? To seek the things spiritual, all of them; to forgive them that have trespassed, and so to draw nigh asking forgiveness; "to lift up holy hands without wrath and doubting." If we thus ask, we shall receive. As it is, surely our asking is a mockery, and the act of drunken rather than of sober men. "What then," saith one, "if I ask even spiritual things, and do not receive?" Thou didst not surely knock with earnestness; or thou madest thyself unworthy to receive; or didst quickly leave off.

By the fish we may understand the word concerning Christ, by the serpent the Devil himself. Or by the loaf may be understood spiritual doctrine; by the stone ignorance; by the fish the water of Holy Baptism; by the serpent the wiles of the Devil, or unbelief. The sense therefore is; we need not fear that should we ask of God our Father bread, that is doctrine or love, He will give us a stone; that is, that He will suffer our heart to be contracted either by the frost of hatred or by hardness of soul; or that when we ask for faith, He will suffer us to die of the poison of unbelief. Thence it follows, If then ye being evil.

Or; bread which is the common food signifies charity, without which the other virtues are of no avail. The fish signifies faith, which is born of the water of baptism, is tossed in the midst of the waves of this life and yet lives. Luke adds a third thing, an egg, (Luke 11:12.) which signifies hope; for an egg is the hope of the animal. To charity, He opposes a stone, that is, the hardness of hatred; to faith, a serpent, that is, the venom of treachery; to hope, a scorpion, that is, despair, which stings backward, as the scorpion.