Acts 15:36

And after certain days Paul said to Barnabas, Let us go again and visit the brethren in every city, where we have preached the word of the Lord, and see how they do.

1 Thessalonians 3:5-6

Therefore when I could bear no longer, I sent to know your faith, left by any means the tempter should have tempted you, and our labour 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

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Acts 15:36
And after certain days Paul said to Barnabas, Let us go again and visit the brethren in every city, where we have preached the word of the Lord, and see how they do.
1 Thessalonians 3:5
Therefore when I could bear no longer, I sent to know your faith, left by any means the tempter should have tempted you, and our labour be in vain.