'Ignorance' in the Bible

And now, brethren, I know that in ignorance ye did it, as did also your rulers.

For as I passed along, and observed the objects of your worship, I found also an altar with this inscription, TO AN UNKNOWN GOD. What therefore ye worship in ignorance, this I set forth unto you.

The times of ignorance therefore God overlooked; but now he commandeth men that they should all everywhere repent:

being darkened in their understanding, alienated from the life of God, because of the ignorance that is in them, because of the hardening of their heart;

as children of obedience, not fashioning yourselves according to your former lusts in the time of your ignorance:

For so is the will of God, that by well-doing ye should put to silence the ignorance of foolish men: