Matthew 5:46

What good is there, when you love only those who love you? Even [corrupt] tax collectors do that!

Luke 6:32-35

If you love those who love you what thanks do you have? Even sinners love those who love them.

Matthew 6:1

Be careful! Do not display your righteousness (good works) before men to be noticed by them. If you do, you will have no reward with your heavenly Father.

Matthew 9:10-11

Jesus was a dinner guest at Matthew's house. Many tax collectors and sinners came and sat down with him and his disciples.

Matthew 11:19

The Son of man came eating and drinking, and they say, 'A gluttonous man and a drunkard, a friend of tax collectors and sinners!' Wisdom is justified by its actions.

Matthew 18:17

If he will not listen to them, let it come to the attention of the congregation. If he will not listen to the congregation, let him be to you as a heathen and a tax collector.

Matthew 21:31-32

Which of the two pleased his father? They replied: The first. Jesus said to them: I tell you, tax collectors and prostitutes will go into the kingdom of God before you.

Luke 15:1

One day a large number of tax collectors and other outcasts came to listen to Jesus.

Luke 18:13

But the tax collector stood far away and would not lift up so much as his eyes to heaven. He beat his breast, saying: God, be merciful to me a sinner.

Luke 19:2

There was an important, wealthy, chief tax collector called Zacchaeus.

Luke 19:7

Many in the crowd complained saying: He is staying with a man who is a sinner.

1 Peter 2:20-23

What value is there when you sin, and are buffeted for it, you take it patiently? But if, when you do well and suffer for it, you take it patiently, this is acceptable with God.

Treasury of Scripture Knowledge

Summary

For if ye love them which love you, what reward have ye? do not even the publicans the same?

Bible References

If

Matthew 6:1
Be careful! Do not display your righteousness (good works) before men to be noticed by them. If you do, you will have no reward with your heavenly Father.
Luke 6:32
If you love those who love you what thanks do you have? Even sinners love those who love them.
1 Peter 2:20
What value is there when you sin, and are buffeted for it, you take it patiently? But if, when you do well and suffer for it, you take it patiently, this is acceptable with God.

Publicans

Matthew 9:10
Jesus was a dinner guest at Matthew's house. Many tax collectors and sinners came and sat down with him and his disciples.
Matthew 11:19
The Son of man came eating and drinking, and they say, 'A gluttonous man and a drunkard, a friend of tax collectors and sinners!' Wisdom is justified by its actions.
Matthew 18:17
If he will not listen to them, let it come to the attention of the congregation. If he will not listen to the congregation, let him be to you as a heathen and a tax collector.
Matthew 21:31
Which of the two pleased his father? They replied: The first. Jesus said to them: I tell you, tax collectors and prostitutes will go into the kingdom of God before you.
Luke 15:1
One day a large number of tax collectors and other outcasts came to listen to Jesus.
Luke 18:13
But the tax collector stood far away and would not lift up so much as his eyes to heaven. He beat his breast, saying: God, be merciful to me a sinner.
Luke 19:2
There was an important, wealthy, chief tax collector called Zacchaeus.