Midrash su Geremia 25:30

(Fol. 3a) "Until the end of the first watch," said R. Eliezer. Let us see: with whom does R. Eliezer agree? If he hold that the night is divided into three watches, then let him say "until the end of the fourth hour"; and if he hold that the night is divided into four watches, then let him say "Until the end of the third hour?" He holds indeed that the night has three watches, but he intends to inform us that just as there exist watches in Heaven, so there exist watches here on the earth; as we are taught that R. Eliezer says: "Three watches has the night; and at the beginning of every watch the Holy One, praised be He! sits and roars like a lion, as it is said (Jer. 25, 30.) The Lord will roar from Heaven on high and from His holy dwelling shall He give forth His voice. Verily, He will roar over His habitation. And the divisions of the night are recognized by these signs: In the first watch the ass brays; in the second the dog barks; and in the third the baby nurses from its mother's breast and the wife converses with her husband." How does R. Eliezer arrive at these conclusions? Does he apply the signs to the beginning or to the end of each watch? If He applies his signs to the beginning of each watch, then it is unnecessary to have a sign for the first, as nightfall itself is a sufficient indication for it! If, however, he applies his signs to the end of each watch then the sign for the last is unnecessary, for the dawn is then sufficient! He applies his signs to the end of the first watch, the beginning of the last and the middle of the second. And if you please, you may say that he applies his signs to the end of each watch. In answer to your question as to the necessity of a sign for the last, I say: It is necessary for a man who sleeps in a dark place and does not know the time for reading the Sh'm'a: as soon as he hears the wife conversing with her husband, and the baby nursing from its mother's breast, he may begin to read the Sh'm'a. R. Isaac b. Samuel in the name of Rab said: "Three watches has the night and at the beginning of every watch the Holy One, praised be He! sits and roars like a lion and says 'Woe to the children that because of their sins I have destroyed my edifice, and burned my Temple, and exiled my children among the heathens.' "

"Until the end of the first watch," said R. Eliezer. Let us see: with whom does R. Eliezer agree? If he hold that the night is divided into three watches, then let him say "until the end of the fourth hour"; and if he hold that the night is divided into four watches, then let him say "Until the end of the third hour?" He holds indeed that the night has three watches, but he intends to inform us that just as there exist watches in Heaven, so there exist watches here on the earth; as we are taught that R. Eliezer says: "Three watches has the night; and at the beginning of every watch the Holy One, praised be He! sits and roars like a lion, as it is said (Jer. 25:30) "The Lord will roar from Heaven on high and from His holy dwelling shall He give forth His voice." Verily, He will roar over His habitation. And the divisions of the night are recognized by these signs: In the first watch the ass brays; in the second the dog barks; and in the third the baby nurses from its mother's breast and the wife converses with her husband."

...“…directed toward Your habitation, which You made, O Lord…” (Exodus 15:17) This is one of the places which indicate that the throne above is aligned with the throne below, as it says “So says the Lord, The heavens are My throne, and the earth is My footstool…” (Isaiah 66:1) And it says “And He said to me, Son of man, this is the place of My throne and the place of the soles of My feet…” (Ezekiel 43:7) and “The Lord is in His Holy Temple. The Lord-His throne is in Heaven…” (Tehillim 11:4) and “I have surely built You a house to dwell in…” (Kings 8:13) The Holy Temple is beloved before He Who Spoke and Brought the World Into Being. All of the world was created only with the speech of the Holy One, as it says “By the word of the Lord, the heavens were made…” (Tehillim 33:6) but when He built the Holy Temple it was, so to speak, through His action ‘which You made, O Lord.’ Oy to the nations of the world, whose ears heard that the Holy Temple is called an action in relation to the One Who Spoke and Brought the World Into Being and destroyed it. The one who said “…Raze it, raze it, down to its foundation!” (Tehillim 137:7) What does He say? “And you prophesy to them all these words, and you shall say to them: The Lord shall roar from above, and from His Holy Habitation He shall give forth His voice; He shall roar over His habitation… A stirring has come until the end of the earth, for God has a controversy with the nations…” (Jeremiah 25:30-31)