Bible Verses About Rashness: Moses, in Killing the Egyptian

And it came to pass in those days, when Moses was grown, that he went out unto his brethren, and looked on their burdens: and he spied an Egyptian smiting an Hebrew, one of his brethren.

And he looked this way and that way, and when he saw that there was no man, he slew the Egyptian, and hid him in the sand.

And seeing one of them suffer wrong, he defended him, and avenged him that was oppressed, and smote the Egyptian:

For he supposed his brethren would have understood how that God by his hand would deliver them: but they understood not.