Acts 15:36

Then after some days Paul suggested to Barnabas, "Let us go back and visit the brothers in all the towns where we proclaimed the message of the Lord, to see how they are doing."

1 Thessalonians 3:5-6

[So], for this reason, when I could not stand it any longer, I also sent [Timothy] to find out about your faith. I was afraid that somehow the tempter [i.e., Satan] had tempted you [to give up] and that our work [on your behalf] will have become useless.

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
Then after some days Paul suggested to Barnabas, "Let us go back and visit the brothers in all the towns where we proclaimed the message of the Lord, to see how they are doing."
1 Thessalonians 3:5
[So], for this reason, when I could not stand it any longer, I also sent [Timothy] to find out about your faith. I was afraid that somehow the tempter [i.e., Satan] had tempted you [to give up] and that our work [on your behalf] will have become useless.