'Ignorant' in the Bible

a schoolmaster for the dull and ignorant, a teacher of the young, because in the Law you possess an outline of real knowledge and an outline of the truth:

Ignorant of the righteousness which God provides and building their hopes upon a righteousness of their own, they have refused submission to God's righteousness.

God has not cast off His People whom He knew beforehand. Or are you ignorant of what Scripture says in speaking of Elijah--how he pleaded with God against Israel, saying,