'Ignorance' in the Bible

“And now, brethren, I know that you acted in ignorance, just as your rulers did also.

For while I was passing through and examining the objects of your worship, I also found an altar with this inscription, ‘TO AN UNKNOWN GOD.’ Therefore what you worship in ignorance, this I proclaim to you.

Therefore having overlooked the times of ignorance, God is now declaring to men that all people everywhere should repent,

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

but into the second, only the high priest enters once a year, not without taking blood, which he offers for himself and for the sins of the people committed in ignorance.

As obedient children, do not be conformed to the former lusts which were yours in your ignorance,

For such is the will of God that by doing right you may silence the ignorance of foolish men.