Acts 23:16

But Paul's nephew learned of their plot and went to the headquarters and told Paul [all about it].

Acts 23:10

And when a serious debate broke out, the commander was afraid that Paul might [virtually] be torn apart by the mob, so he ordered his soldiers to go down [to the Council meeting] and forcibly remove Paul and take him to the battalion headquarters.

Acts 21:34

From the crowd, some shouted one thing and some another. When the commander could not hear what was being said because of the noise, he ordered Paul to be taken into the battalion headquarters.

Acts 23:32

The next day the soldiers allowed the horsemen to go on with Paul, while they [themselves] returned to headquarters.

1 Corinthians 3:19

For this world's "wisdom" is foolishness to God. For it is written [Job 5:13], "He [i.e., God] catches wise people in their cleverness."

Treasury of Scripture Knowledge

Summary

And when Paul's sister's son heard of their lying in wait, he went and entered into the castle, and told Paul.

Bible References

When

1 Corinthians 3:19
For this world's "wisdom" is foolishness to God. For it is written [Job 5:13], "He [i.e., God] catches wise people in their cleverness."