One of the phrases I hear all the time at school is “I didn’t know”. It applies to almost anything that a student is supposed to be doing or have done. It is a one-size-fits-all excuse. It also is worthless in my class. When I have given out papers and reviewed them, repeatedly asked if any one else has the assignment, written it on the board, gone around checking and answer questions that the person making the excuse has asked, it doesn’t wash. They knew in their “inward (innermost NASB) parts” (2315). They know they know. They just don’t want to admit it.
I believe that people know or have known what is right and wrong. It is possible to be conditioned to think different but there is still a part of us that knows the truth. Paul put it this way,
(Romans 1:19 KJV) Because that which may be known of God is manifest in them; for God hath shewed it unto them.I observe this at school on the issue of homosexuality. Kids know it is not acceptable but over the years they are conditioned. They resist the label. Take that and apply it to any of the sins that we make excuses for whether it be gossip or adultery. We know because God makes us know.
So? Don’t seek the solace of excuses. God does not play games and He will not change the rules just because you claim you did not know.