What does it mean that the Son of Man is a representative man?

The concept of the Son of Man as a representative man is rooted in Romans 5:18-21, where Paul contrasts Adam and Christ. Through Adam's disobedience, condemnation came to all mankind; conversely, through the obedience of Christ, many can be made righteous. This means that Christ, by becoming the Son of Man, fully identified with human nature and took upon Himself the consequences of sin, thus acting as a representative for all believers. His obedience opens the way for justification and eternal life, ensuring that those who are in Him are counted as righteous. This representation is not limited to a few but applies to all whom He represents, aligning with the sovereign grace provided through His sacrifice.