2 Corinthians 9:4

so that I won't by any means, if there come with me any of Macedonia and find you unprepared, we (to say nothing of you) should be disappointed in this confident boasting.

Romans 15:26

For it has been the good pleasure of Macedonia and Achaia to make a certain contribution for the poor among the saints who are at Jerusalem.

2 Corinthians 8:1-5

Moreover, brothers, we make known to you the grace of God which has been given in the assemblies of Macedonia;

2 Corinthians 8:24

Therefore show the proof of your love to them in front of the assemblies, and of our boasting on your behalf.

2 Corinthians 9:2

for I know your readiness, of which I boast on your behalf to them of Macedonia, that Achaia has been prepared for a year past. Your zeal has stirred up very many of them.

2 Corinthians 11:17

That which I speak, I don't speak according to the Lord, but as in foolishness, in this confidence of boasting.

Treasury of Scripture Knowledge

Summary

Lest haply if they of Macedonia come with me, and find you unprepared, we (that we say not, ye) should be ashamed in this same confident boasting.

General references

Bible References

They

2 Corinthians 9:2
for I know your readiness, of which I boast on your behalf to them of Macedonia, that Achaia has been prepared for a year past. Your zeal has stirred up very many of them.
2 Corinthians 8:1
Moreover, brothers, we make known to you the grace of God which has been given in the assemblies of Macedonia;

Be ashamed

2 Corinthians 8:24
Therefore show the proof of your love to them in front of the assemblies, and of our boasting on your behalf.
2 Corinthians 11:17
That which I speak, I don't speak according to the Lord, but as in foolishness, in this confidence of boasting.

General references

2 Corinthians 8:24
Therefore show the proof of your love to them in front of the assemblies, and of our boasting on your behalf.