'Crazy' in the Bible

So David changed his behavior before them and acted like he was crazy in their presence. He scribbled on the doors of the gate, and let his saliva run down his beard.

“Look! You can see the man is crazy,” Achish said to his servants. “Why did you bring him to me?

Do I have such a shortage of crazy people that you brought this one to act crazy around me? Is this one going to come into my house?”

When Jehu came out to his master’s servants, they asked, “Is everything all right? Why did this crazy person come to you?”Then he said to them, “You know the sort and their ranting.”

The LORD made you a priest instead of Jehoiada the priest to serve in the LORD's Temple as an official against every crazy prophet, and to put him in stocks and restraints.

Many of them were saying, “He has a demon and He’s crazy! Why do you listen to Him?”

“You’re crazy!” they told her. But she kept insisting that it was true. Then they said, “It’s his angel!”

As he continued his defense, Festus shouted, "You're out of your mind, Paul! Too much education is driving you crazy!"

But he said, "I am not crazy, most excellent Festus, but boldly declare words of truth and reasonableness.

If therefore the whole assembly is assembled together and all speak with other languages, and unlearned or unbelieving people come in, won't they say that you are crazy?

So if we were crazy, it was for God; if we are sane, it is for you.

he is puffed up with pride and has no true knowledge, but is crazy over discussions and controversies about words which give rise to envy, quarrelling, revilings, ill-natured suspicions,