What do you think Jesus wants us to understand from Matthew 91213?
If you look at the preceding verses you see that the scribes and
Pharisees are upset because Jesus is not paying attention to them.
They thought they were the 'righteous/spiritual people' of those
times. When Jesus ignores them and associates with 'sinners' they
ask why.
Jesus answers by saying people who recognised themselves as in
need (unrighteous), need help. The Pharisees' trouble was that
although they followed the rituals of Judaism with great precision,
their hearts were hard, cold, and merciless. So Jesus dismissed
them with a challenge to learn the meaning of God's words, "I
desire mercy, and not sacrifice" (quoted from Hos_6:6) verse
13.
We can learn that:
God cannot heal those who are proud, self-righteous, and
unrepentant-like the Pharisees.