'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,