Luke 14:12

Then he also said to the one who invited him, "When you give a luncheon or a dinner, do not invite your friends or your brothers, your relatives or rich neighbors, lest they also invite you back, and you be repaid.

Matthew 6:1-4

"Take heed that you do not do your charitable deeds before men, to be seen by them. If you do, you will have no reward from your Father in heaven.

Matthew 5:46

For if you love those who love you, what reward have you? Do not even the tax collectors do the same?

Matthew 6:16-18

"And when you fast, do not look gloomy, like the hypocrites, for they disfigure their faces that they may be seen by men to be fasting. Truly, I say to you, they have received their reward.

Luke 1:53

He has filled the hungry with good things, and the rich he has sent empty away.

Luke 6:32-36

If you love those who love you, what credit is that to you? For even sinners love those who love them.

James 2:1-6

My brethren, show no favoritism as you hold your faith in our glorious Lord Jesus Christ.

Treasury of Scripture Knowledge

Summary

Then said he also to him that bade him, When thou makest a dinner or a supper, call not thy friends, nor thy brethren, neither thy kinsmen, nor thy rich neighbours; lest they also bid thee again, and a recompence be made thee.

General references

Bible References

When

Luke 1:53
He has filled the hungry with good things, and the rich he has sent empty away.
James 2:1
My brethren, show no favoritism as you hold your faith in our glorious Lord Jesus Christ.

And a

Luke 6:32
If you love those who love you, what credit is that to you? For even sinners love those who love them.
Matthew 5:46
For if you love those who love you, what reward have you? Do not even the tax collectors do the same?
Matthew 6:1
"Take heed that you do not do your charitable deeds before men, to be seen by them. If you do, you will have no reward from your Father in heaven.

General references

Matthew 5:42
Give to him who asks you, and from him who wants to borrow from you do not turn away.
Luke 6:34
And if you lend to those from whom you hope to receive back, what credit is that to you? For even sinners lend to sinners, to receive as much back.