Ecclesiastes 12:4

"Bird" can here mean the Savior in his human nature.…But also the message of truth itself can be called "bird" for this time. It can be compared for this time with a bird that comes from on high, from where truth came to the listeners. Since, however, now even the perfect listeners are lifted up and strive for what is above the earth, the "bird on the roof" calls to them. Standing above the cosmos it has announced the perfect, the encounter with truth "from face to face."

"The daughters of song" are false teachers, the daughters only of the voice but not of the spirit, not of wisdom, not of knowledge, not of light. Because of their unmanliness and their feminization in the treatment of the perishable they are called daughters.They will be brought low. Like darkness ends when light appears, they will be unveiled as nothing when the "call of the bird," that is, of the "market" or the Savior or the divine teacher, the "rising" [human being], is here. It turns out that the teaching [of the daughters of song] is valid only for this present life and that—to say briefly what has been treated extensively by people elsewhere—human wisdom, which promises a program of nice speeches and good rhetoric, lasts only as long as the voice. Since, however, this voice will vanish, because no air is moving any more when they rise above the sphere of the air, they will be brought low. The "daughters of song" will be seen as nothing, since the wise teachers are not called daughters or daughters of song, but "sons of light," and "sons of wisdom."

"And the doors shall be shut in the streets, when the sound of the grinding is low, and he shall rise up at the voice of the bird, and all the daughters of music shall be brought low. "When the voice of the grinder is weak and the teaching of a tutor has stopped, then in turn all things will stop. Even the doors are closed in the streets, as according to the unwieldy virgins of the Gospel [Cfr. Matth. 25, 1-12.], and each one regards her doors as closed to her in the street, so that she can not buy oil. Or even, while the virgins are wandering in the streets, husbands close each room when they have entered into it. For if the road is thin and narrow, which leads to life and that which leads to death is wide and open, justly, the charity of most being cold, the door of teachings is closed in the streets. [Cfr. Matth. 7, 13.] But let us use the following verse, in which he says, "and he rises to the sound of a bird", (or of a sparrow), if we seem to be a sinner to the voice of the bishop or elder so to show that we are in repentance. But this could also be different again, if we do not follow the context of this chapter, it can be taken to mean the real resurrection, when the death will rise up to the voice of the arch-angel. And it is not surprising, if we compare the trumpet of an angel to a sparrow, when all night is compared to Christ, if it is clement. And also this is not too surprising, if my memory serves me right, when I have never read of a sparrow in a bad light. In the tenth Psalm a righteous man says, "I trust in God, just as you say to my spirit: fly to the mountain like a sparrow." [Ps. 10, 1.] And in another place: "I woke and I was made as a sparrow alone on a roof" [Ps. 101, 8.]. Nor is it seen in a bad light in another place: "and even the sparrow found a home for himself" [Ps. 83, 4.]. Differently: they want to see this as the closed doors in the street, as the weak steps of an old man, because he always sits and cannot walk. The weakness of the voice of the grinder is interpreted as in his jaws, because he cannot chew food, and scarcely reduced in spirit, his voice is heard only quietly. More precisely he shows him to rise to the sound of a bird, because now with cold blood and dry organs by which sleep is nourished, he wakes to a soft sound, and in the middle of the night, when the cock crows, he rises quickly; but he is not able to move…