Isaiah 40: 1-5. 9-11
The prophet Isaiah announces that God’s glory is about to be revealed, and calls on the people to prepare for it.

2 Peter 3: 8-14
The followers of Jesus are called to lead holy and good lives while waiting for the new heavens and new earth, where righteousness rules.

Mark 1: 1-8
The first verses of Mark’s Gospel announce the “beginning of the Good News” of Jesus Christ, and tells of the witness of John of the Baptist.