In this final charge the people bring against God in Malachi 3:13-18, the people are asking whether it's really worth it to follow God with their whole lives. They see the wicked prospering around them and it's caused them to grow cynical about fruitful and faith-fill obedience. God's word against them is that those who follow obediently in his commands will have their names written in the book of remembrance, forever sealed by the blood of the Lamb.