According to the Traditional/Extra-Ordinary Rite:
Epistle: Rom. 15:4-13
Brethren: For what things soever were written were written for our learning: that, through patience and the comfort of the scriptures, we might have hope. Now the God of patience and of comfort grant you to be of one mind, one towards another, according to Jesus Christ: That with one mind and with one mouth you may glorify God and the Father of our Lord Jesus Christ. Wherefore, receive one another, as Christ also hath received you, unto the honour of God. For I say that Christ Jesus was minister of the circumcision for the truth of God, to confirm the promises made unto the fathers: But that the Gentiles are to glorify God for his mercy, as it is written: "Therefore will I confess to thee, O Lord, among the Gentiles and will sing to thy name." And again he saith: "Rejoice ye Gentiles, with his people." And again: "Praise the Lord, all ye Gentiles: and magnify him, all ye people." And again, Isaias saith: "There shall be a root of Jesse; and he that shall rise up to rule the Gentiles, in him the Gentiles shall hope." Now the God of hope fill you with all joy and peace in believing: that you may abound in hope and in the power of the Holy Ghost.
Gospel: Matt. 11:2-10
At that time, when John had heard in prison the works of Christ: sending two of his disciples he said to him: "Art thou he that art to come, or look we for another?" And Jesus making answer said to them: "Go and relate to John what you have heard and seen. The blind see, the lame walk, the lepers are cleansed, the deaf hear, the dead rise again, the poor have the gospel preached to them. And blessed is he that shall not be scandalized in me."
And when they went their way, Jesus began to say to the multitudes concerning John: "What went you out into the desert to see? a reed shaken with the wind? But what went you out to see? a man clothed in soft garments? Behold they that are clothed in soft garments, are in the houses of kings. But what went you out to see? A prophet? Yea I tell you, and more than a prophet. For this is he of whom it is written: 'Behold I send my angel before my face, who shall prepare thy way before thee.' "
The theme of the Epistle reading is hope - hope in the coming of the Lord. The Gospel speaks of John the Baptist who prepared the way of Jesus. Again, preparing the way of the Lord.