Reading , “And he said: ‘Let me go, for the day breaks,’” the Gemara told that Jacob asked his adversary whether he was a thief or a rogue that he was afraid of the morning. He replied that he was an angel, and from the day that he was created, he had not yet had his time to sing praises to God, until that moment. The Gemara noted that this statement implying that angels sing God praises at an appointed time supported the statement of Rav Hananel in the name of Rav, who said that three divisions of ministering angels sing praises to God every day. One proclaims (in the words of ), “Holy”; the second proclaims, “Holy”; and the third proclaims, “Holy is the Lord of hosts.”