Matthew

6:9-15
"This, then, is how you should pray:
"'Our Father in heaven, hallowed be your name, your kingdom come, your will be done on earth as it is in heaven.  Give us today our daily bread.  Forgive us our debts, as we also have forgiven our debtors.  And lead us not into temptation, but deliver us from the evil one.'
For if you forgive men when they sin against you, your heavenly Father will also forgive you.  But if you do not forgive men their sins, your Father will not forgive your sins.

9:10
While Jesus was having dinner at Matthew's house, many tax collectors and "sinners" came and ate with him and his disciples.  When the Pharisees saw this, they asked his disciples, "Why does your teacher eat with tax collectors and 'sinners'?"
On hearing this, Jesus said, "It is not the healthy who need a doctor, but the sick.  But go and learn what this means: 'I desire mercy, not sacrifice.' For I have not come to call the righteous, but sinners."