'Have No Knowledge' in the Bible

Moreover your little ones, who ye said would be a prey, and your sons, who this day have no knowledge of good or evil, they shall go in there, and I will give it to them, and they shall possess it.

Assemble yourselves and come, draw near together, ye that are escaped of the nations. They have no knowledge that carry the wood of their graven image, and pray to a god that cannot save.

If I go forth into the field, then, behold, the slain with the sword! And if I enter into the city, then, behold, those who are sick with famine! For both the prophet and the priest go about in the land, and have no knowledge.