Aaron shall place lots upon the two goats, one marked for the Eternal and the other marked for Azazel.

This prayer is said by the Hazzan before Musaf :

Behold, I stand here, poor in deeds, rattled and frightened in fear of the One who is enthroned upon the praises of Israel. I have come to stand and to plead before You on behalf of Your people, Israel, who have appointed me their messenger; even though I am not worthy or qualified for the task.

Source of all energy and power! Who could possibly duplicate Your mighty works? You constructed chambers above the cold waters, and placed the globe in space. When the world was filled with total darkness You wrapped yourself in Your garment, radiating with morning light...

Your loved one who came “across the river,” made famous Your Name in the world. The son of his old age, he offered to You in sacrifice. Then like a perfect, unblemished lamb the pure one was chosen; he desired to sit in tents and followed you. Righteous children You brought forth from him, all of whom stayed true to their heritage, none ever deviating. To serve You, You desired Levi, Your pious one. From his tribe, You chose one to be Your holiest; to wear the holy crown and the Urim VeTumim, and to dwell inside the Tabernacle for seven days....

[First the High Priest makes a confession for himself and his family with his hands placed on the head of an ox.]

The High Priest then walked to the eastern part of the Temple Courtyard where stood a pair of goats bought with communal funds. They stood next to each other like twins, identical in color and height, ready to atone for the sins of a rebellious daughter. Two golden lots were mixed, then lifted out of the box, one lot for God, the other for “Azazel.” He shouted aloud “A sin offering for the Eternal One!” Those who heard him responded, blessing the Name of God. A thread of red wool he tied on the head of the Azazel goat which was placed at the eastern gate from whence it would be sent away...

[Then the priest makes his second confession, again with hands placed on the ox's head, for the whole priesthood. Then he slaughters the ox, and the goat, and mixes their blood together.]

He then approached the live goat. The intentional and unintentional sins of the people, he confessed to the Almighty.

And this was his confession: I beg of You, Hashem; they have sinned, acted wickedly, rebelled against You— Your people, the House of Israel— I beg of You, Hashem, atone the sins, iniquities, and rebellions that were committed against You, by Your people, the House of Israel. As it is written in the Torah of Moshe, Your servant, from the mouth of Your glory: “For on this day God will make atonement for you, to cleanse you, from all your sins before the Eternal.”

And the priests and the people who were standing in the Temple Courtyard; when they heard the glorious and awesome Name [of God] explicitly pronounced from the mouth of the High Priest, with holiness and with purity, they bowed, prostrated themselves, offered thanks, and fell upon their faces, and said: “Blessed is the Name of God's glorious kingdom is forever and ever.”

And He [the High Priest] prolonged the intoning of the Divine Name until the worshippers completed [the response]; and [completing the verse] said to them: “You will be cleansed.” And [now] with Your great goodness, arouse Your mercy, and pardon the community of Jeshurun.

He handed the goat to one appointed, to lead it out to the harsh desert. The spiritual blemishes of the people it carried to the desert. He pushed it off the rocky cliff and it tumbled down, breaking its bones like shattered potter's ware...

The Service now completed, he washed his hands and feet. Thus performing for the day, five immersions and ten washings.

The appearance of his face was like the brilliance of a sunrise. With great joy, he put on his own clothes. The perfect ones [Yisrael] accompanied its faithful messenger home. They rejoiced in the news that the red thread had turned white. The Redeemer had been faithful, wrapped up in righteousness. A great joy burst forth, happiness and rejoicing rang out. The clouds above dripped, and showered forth their dew. The furrowed fields brought forth their produce. Thanks was given by those who harvested their crop in peace. Praise was recited by those who carried the sheaves joyously. The lowliest places of the beautiful land rang out with song. God's goodness was told by all who traveled through byways.

Truly, how glorious it was when the High Priest emerged from the Holy of Holies, in peace and unharmed!

(24) When her time to give birth was at hand, there were twins in her womb. (25) The first one emerged red, like a hairy mantle all over; so they named him Esau. (26) Then his brother emerged, holding on to the heel of Esau; so they named him Jacob. Isaac was sixty years old when they were born.

(27) When the time came for her to give birth, there were twins in her womb! (28) While she was in labor, one of them put out his hand, and the midwife tied a crimson thread on that hand, to signify: This one came out first. (29) But just then he drew back his hand, and out came his brother; and she said, “What a breach you have made for yourself!” So he was named Perez.