Acts 15:36

Then after certain days said Paul to Barnabas, Let us now return and visit our brethren in every city among whom we have preached the word of the Lord, that we may see how they hold on.

1 Thessalonians 3:5-6

For this cause also, when I could no longer forbear, I sent to know your fidelity, lest by any means the tempter had tempted you, and our labour should be in vain.

Treasury of Scripture Knowledge

Summary

And carry these ten cheeses unto the captain of their thousand, and look how thy brethren fare, and take their pledge.

Bible References

Look

Acts 15:36
Then after certain days said Paul to Barnabas, Let us now return and visit our brethren in every city among whom we have preached the word of the Lord, that we may see how they hold on.
1 Thessalonians 3:5
For this cause also, when I could no longer forbear, I sent to know your fidelity, lest by any means the tempter had tempted you, and our labour should be in vain.