Then he added, “Now go and learn the meaning of this Scripture: ‘I want you to show mercy, not offer sacrifices.’ For I have come to call not those who think they are righteous, but those who know they are sinners.”
All Scripture is inspired by God and is useful to teach us what is true and to make us realize what is wrong in our lives. It corrects us when we are wrong and teaches us to do what is right. God uses it to prepare and equip his people to do every good work.