A man cannot know righteousness unless he knows God; that's why in the world, righteousness is not a subject. Rather, they talk about doing right or wrong, and all of that is based on man’s moral standards, which changes is based on one’s location and what the society says is right or wrong. So, right and wrong in the world is being defined and redefined by individuals and societies for themselves; but that’s not the way it is with God. God has His choices, opinions and ways of doing things and that is His righteousness, and He revealed this to man through Jesus Christ. That is what the Gospel is about: God’s message sent through Jesus to human beings; God revealing His mind to human beings through Jesus Christ. click here for yesterday's Reality check