John Lightfoot on Luke 12:24

[Neither storehouse nor barn.] The storehouse is where they laid up their fruits, and the barn where they laid up their grain. It is commonly rendered the floor, but there it is meant the barn-floor. Our Saviour takes an instance from God feeding the ravens, Job 38:41; Psalm 147:9, where it is R. Solomon's remark: "Our Rabbins observe, that the raven is cruel towards its young; but God pitieth them, and provides them flies, that breed out of their own dung." Now the reason they give why the old ones are so unmerciful to their own young is in Chetubboth, where the Gloss thus explains the minds of the Gemarists speaking of the young ones both white and black: "When they grow black the old ones begin to love their young, but while they are all white they loathe them."

In that very place there occurs this passage, not unworthy our transcribing: "There was a certain man brought before Rabh Judah because he refused to provide for his children. Saith he to those that brought him, The dragon brings forth, and lays her young in the town to be nourished up. When he was brought to Rabh Chasda, he saith unto them, 'Compel him to the door of the synagogue, and there let him stand, and say, The raven seeks her young ones, but this man doth not seek [or own] his children.' But doth the raven seek her young ones? Behold it is written, God feedeth the ravens which cry unto him. This hath no difficulty in it. This is said of them while they are white, that 'God feeds them': but that is said of them when they are become black, that 'the raven owneth her young.'" But the Gloss hath it thus: "It seems as if he with his own voice should cry out against himself, and say, 'The raven owneth her young.' But there are those that expound it as if the minister of the synagogue should set him forth and proclaim upon him, The raven acknowledgeth her young, but this man rejects his own children." "Tell it to the church," Matthew 18:17.