2 Peter 2:16

And he had reprehension for his own iniquity: the dumb ass speaking in man's voice impeded the insanity of the prophet.

Numbers 22:21-33

And Balaam will rise up in the morning, and saddle his ass, and go with the leaders of Moab.

Ecclesiastes 7:25

I went round about, I and my heart., to know, and to examine, and to search out wisdom and understanding, and to know the injustice of folly, and the folly of wickedness:

Ecclesiastes 9:3

This an evil in all being done under the sun, thus one event is to all: and also the heart of the sons of man being full of evil, and folly in their heart in their living, and after it to their deaths.

Hosea 9:7

The days of oversight came, the days of recompense came; Israel knew: the prophet is foolish, the man of the spirit, raving, for the multitude of thine iniquity and great destruction.

Luke 16:11

If therefore ye were not faithful in the unjust mammon, who shall trust to you the true?

Acts 26:11

And in all the synagogues, many times punishing them, I compelled to blaspheme; and being exceedingly enraged against them, I drove out even also to cities without.

Acts 26:24-25

And he defending himself by these, Festus said with a great voice, Thou art frenzied, Paul; many letters turn thee to madness.

Treasury of Scripture Knowledge

Summary

But was rebuked for his iniquity: the dumb ass speaking with man's voice forbad the madness of the prophet.

The dumb

Bible References

The dumb

Numbers 22:22
And the anger of God will kindle because he went; and the messenger of Jehovah will stand in the way, for an adversary to him: and he rode upon his ass, and his two young men with him.

The madness

Ecclesiastes 7:25
I went round about, I and my heart., to know, and to examine, and to search out wisdom and understanding, and to know the injustice of folly, and the folly of wickedness:
Ecclesiastes 9:3
This an evil in all being done under the sun, thus one event is to all: and also the heart of the sons of man being full of evil, and folly in their heart in their living, and after it to their deaths.
Hosea 9:7
The days of oversight came, the days of recompense came; Israel knew: the prophet is foolish, the man of the spirit, raving, for the multitude of thine iniquity and great destruction.
Luke 16:11
If therefore ye were not faithful in the unjust mammon, who shall trust to you the true?
Acts 26:11
And in all the synagogues, many times punishing them, I compelled to blaspheme; and being exceedingly enraged against them, I drove out even also to cities without.