Acts 2:37-38

And when they heard this, they were pierced to the heart, and said to Peter and the rest of the apostles, Brethren, what must we do?

Acts 17:19-20

And they took him and brought him to Mars hill, saying, May we know what this new doctrine is, of which thou speakest?

Acts 17:30-32

The times indeed of ignorance God overlooked; but now commandeth all men every where to repent;

Treasury of Scripture Knowledge

Summary

The watchman said, The morning cometh, and also the night: if ye will inquire, inquire ye: return, come.

Bible References

If

Acts 2:37
And when they heard this, they were pierced to the heart, and said to Peter and the rest of the apostles, Brethren, what must we do?
Acts 17:19
And they took him and brought him to Mars hill, saying, May we know what this new doctrine is, of which thou speakest?