Following is a link to readings from the Revised Common Lectionary for the Second Sunday of Advent for 2023.

It begins:

Isaiah 40:1-11
40:1 Comfort, O comfort my people, says your God.

40:2 Speak tenderly to Jerusalem, and cry to her that she has served her term, that her penalty is paid, that she has received from the Lord's hand double for all her sins.

40:3 A voice cries out: "In the wilderness prepare the way of the LORD, make straight in the desert a highway for our God.

Here is the complete text for the first Sunday.