The description of a future messenger of God fits any prophets in the Old Testament. Yahweh grants the request of the office of the prophet as the mediator between God and the people. But God will also send a final prophet, the eschatological prophet of the end times. Some see Jesus as the fulfillment of the eschatological prophet. The early Christian community saw Christ as the final prophet.

God knows not all people can dedicate themselves totally to Him. Thus, He respects the different states of life, married life, and unmarried state. For consecrated persons, it is ideal to be single because they would worry less about temporal things. They can exclusively offer themselves to the Lord with all heart and soul. But a married person, on the other hand, will be preoccupied with many other temporal things, plus their responsibilities towards wife and children.

The 1st reading tells us how God shows infinite mercy even to a pagan nation, as long as they repent their deeds and believe His messenger (Jonah). The people of Nineveh listened to Jonah and repented and showed sincere acts of penance: The people of Nineveh believed in God; they proclaimed a fast, and all of them, great and small, put on sackcloth. (Jon. 3:5)

John the Evangelist uses the theme of the Lamb of God a lot in his Gospel and the book of Revelation. For John the Baptist, Jesus is the Lamb of God. The symbolism of the lamb as an innocent sacrifice originated in the Old Testament. In the Temple liturgy, they sacrifice an innocent lamb as a holocaust or burnt offering. The burnt offering stresses the victim's character of the offering. The lamb symbolizes an innocent, harmless, and endearing sacrifice depicting the Savior, the Lamb of God. The prophets use these unique characteristics of the lamb to refer to the Messiah, the Christ.

The Solemnity of the Epiphany reveals the Divine plan of salvation of the world not limited to the Jews but opened to all humanity. God manifested or revealed Himself (Epiphany) as the Savior Jesus Christ to the Gentile world represented by the Magi or the Three Wise Men from the East. God revealed His plan, first to the Jewish people and veiled from the rest of the world. But in the fullness of time, God bared that the Gentiles are also part of the mystery of the redemption of the human race. Salvation is no longer exclusive to the Jews but for all.