Isaiah 61: 1-2. 10-11
The prophet joyfully proclaims the Lord’s Jubilee, when good news and liberty are brought to those who are poor and those held captive. 

1 Thessalonians 5: 16-24
St Paul urges his readers to always be happy, to hold on to what is good and avoid evil, and to pray at all times.  He hopes for their safety until the coming of the Lord. 

John 1: 6-8. 19-28
John the Baptist is a witness to the coming of the Lord, the light of the world.  He prepares the way, and acknowledges the true status of the one who is to come.