The Calling of Saint Matthew is a masterpiece by Michelangelo Merisi da Caravaggio, depicting the moment at which Jesus Christ inspires Matthew to follow him. It was completed in 1599–1600 for the Contarelli Chapel in the church of the French congregation, San Luigi dei Francesi in Rome, where it remains today. It hangs alongside two other paintings of Matthew by Caravaggio, The Martyrdom of Saint Matthew (painted around the same time as the Calling) and The Inspiration of Saint Matthew (1602). (from https://en.wikipedia.org/wiki/Calling_of_Matthew)
The calling of St Matthew is an account found in all three synoptic gospels. It is a story of redemption of the tax-collector from the deepest and most secular of lives at the time of Christ, and is exemplified not by the gravity of the burden of the sins that St Matthew and others bring to their conversion experiences, but the depth of generosity that Jesus exhibits in wading into the sea of humanity with its inherent weaknesses and frailty, to announce the mercy of God and to signal His willingness to engage the weak and meek in their decisive moments of conversion.
Gospel
Matthew 9:9-13
As Jesus was walking on from there he saw a man named Matthew sitting at the tax office, and he said to him, ‘Follow me.’ And he got up and followed him. Now while he was at table in the house it happened that a number of tax collectors and sinners came to sit at the table with Jesus and his disciples. When the Pharisees saw this, they said to his disciples, ‘Why does your master eat with tax collectors and sinners?’ When he heard this he replied, ‘It is not the healthy who need the doctor, but the sick. Go and learn the meaning of the words: Mercy is what pleases me, not sacrifice. And indeed I came to call not the upright, but sinners.’
Mark 2:13-17
Jesus went out to the shore of the lake; and all the people came to him, and he taught them. As he was walking on he saw Levi the son of Alphaeus, sitting by the customs house, and he said to him, ‘Follow me.’ And he got up and followed him.
When Jesus was at dinner in his house, a number of tax collectors and sinners were also sitting at the table with Jesus and his disciples; for there were many of them among his followers. When the scribes of the Pharisee party saw him eating with sinners and tax collectors, they said to his disciples, ‘Why does he eat with tax collectors and sinners?’ When Jesus heard this he said to them, ‘It is not the healthy who need the doctor, but the sick. I did not come to call the virtuous, but sinners.’Luke 5:27-32
When he went out after this, he noticed a tax collector, Levi by name, sitting at the tax office, and said to him, ‘Follow me.’ And leaving everything Levi got up and followed him. In his honour Levi held a great reception in his house, and with them at table was a large gathering of tax collectors and others. The Pharisees and their scribes complained to his disciples and said, ‘Why do you eat and drink with tax collectors and sinners?’ Jesus said to them in reply, ‘It is not those that are well who need the doctor, but the sick. I have come to call not the upright but sinners to repentance.’