Before His own townspeople, in Nazareth, Christ refers to the words of the prophet Isaiah: "The Spirit of the Lord is upon me, because he has anointed me to preach good news to the poor. He has sent me to proclaim release to the captives and recovering of sight to the blind, to set at liberty those who are oppressed, to proclaim the acceptable year of the Lord." These phrases, according to Luke, are His first messianic declaration. They are followed by the actions and words known through the Gospel. By these actions and words Christ makes the Father present among men.
It is very significant that the people in question are especially the poor, those without means of subsistence, those deprived of their freedom, the blind who cannot see the beauty of creation, those living with broken hearts, or suffering from social injustice, and finally sinners. It is especially for these last that the Messiah becomes a particularly clear sign of God who is love, a sign of the Father. In this visible sign the people of our own time, just like the people then, can see the Father.
It is significant that, when the messengers sent by John the Baptist came to Jesus to ask Him: "Are you he who is to come, or shall we look for another?", He answered by referring to the same testimony with which He had begun His teaching at Nazareth: "Go and tell John what it is that you have seen and heard: the blind receive their sight, the lame walk, lepers are cleansed, and the deaf hear, the dead are raised up, the poor have good news preached to them." He then ended with the words: "And blessed is he who takes no offense at me".
Especially through His lifestyle and through His actions, Jesus revealed that love is present in the world in which we live - an effective love, a love that addresses itself to man and embraces everything that makes up his humanity. This love makes itself particularly noticed in contact with suffering, injustice and poverty - in contact with the whole historical "human condition," which in various ways manifests man's limitation and frailty, both physical and moral. It is precisely the mode and sphere in which love manifests itself that in biblical language is called "mercy."