נסך רביעית ההין יין לכבש האחד. As soon as the priest had bowed down in order to offer the libation, the deputy High Priest would wave the flag cloth to signal to the Levites to begin to chant their hymns. At the time of the Mishnah, a certain ben Arza would then strike the cymbal as a further signal and the Levites would commence reciting their hymns. All the people assembled would bow down, and after each section the tekiah blast of the shofar would be blown and the trumpets would be blown until the end of the offering of the olah, the burnt offering. At the end of that procedure the King and all those present with him would prostrate themselves (Chronicles II 29,28-40; compare also Tamid, 7,3.) The Levites would follow this procedure every day, varying the hymn they would sing. On Sundays they would recite Psalm 24,1, seeing that this psalm deals with aspects of the creation of the universe. It recalls that everything had been void and empty before that “day.” The psalm concludes with the words ויבא מלך הכבוד, to commemorate the directive: “let there be light.” The attribute כבוד also known as Shechinah, is a great light. On Mondays the Levites chanted psalm 48. In verse four of that psalm the separation between different levels of sanctity is alluded to. In the Holy Temple there were different levels of sanctity such as the עזרה, vestibule, the Sanctuary, and the Holy of Holies. On the second day of creation the Torah describes the separation between the “upper” and “lower” waters. (Genesis 1,6). These various levels of sanctity are referred to in verse four of our psalm by the word ארמנותיה, “its various citadels, palaces.” On Tuesdays the Levites would chant psalm 82 which features a verse (3) speaking about judging the poor, etc. This corresponds to the directive that all the waters in the terrestrial world were to concentrate in one area so that the dry land could become visible. (Genesis 1,9) This was an allusion for the judges to congregate when they would sit in judgment and to pronounce judgment for each individual supplicant. On that day the Torah also directed that the earth should produce trees, etc., each according to its own kind (Genesis 1,12), an allusion to the individuality, which is to be preserved on earth. When we read in that psalm that alas, man had to die, unlike the angels, the reference is to the sin committed in that garden in which all these beautiful trees had grown. This is why the psalm recited by the Levites on the fourth day, i.e. psalm 94 which commences with the reminder that G’d does take revenge on those who hate Him, is appropriate for Wednesday, the day the sun and the moon were placed in orbit. The psalmist refers to people worshipping sun and moon. On Thursdays the Levites used to chant psalm 81, which, amongst other matters, deals with the Exodus from Egypt. Pharaoh was compared to a sea monster, תנין, and on that day the great sea-monsters had been created (Genesis 1,21) ; On Fridays the Levites chanted psalm 93 describing how even G’d robed Himself in splendour. It was the day that man, the most accomplished of all the creatures was created, a creature combining within himself some divine attributes (created in the image of G’d). He had been assigned dominion over the animals and even over nature, i.e. he was liable to similarly regard himself as sovereign in his domain on earth. Chanting that psalm then was in keeping with the significance of the day. On the Sabbath the Levites chanted psalm 92, a hymn in which the righteous are described as firmly planted in the House of the Lord, a reference to the Holy Temple. It is entirely possible that there are still more allusions in these various psalms chanted by the Levites on different days of the week.