John Calvin Commentary Acts 21:27

"And when the seven days were almost completed, the Jews from Asia, when they saw him in the temple, stirred up all the multitude and laid hands on him," — Acts 21:27 (ASV)

The Jews who came from Asia. It is certain that these men were enemies of the name of Christ and of Christians, so that while Paul is intent on pacifying the faithful, he incurs the rage of the enemies. Those from Asia are, indeed, the instigators of the tumult; but the minds of all the people were so corrupted by hatred for him that they all became partners in the fury.

But this passage teaches that we must not become impatient if at any time our hope is frustrated, and our plans—which we made with a right and holy intention so that our actions might have a good outcome—do not turn out well. We must attempt nothing except with a good conscience and according to the Spirit of God.

But if things do not happen as we would like, even then, let that inner assurance uphold us—the knowledge that God approves our desire, though it is exposed to the reproaches and mockery of people. Nor let us regret our gentleness, if at any time the wicked treat us otherwise than we deserve.