John the apostle is making us aware that as Chrisitans there are sins that lead to death and some that don't lead to death. But the most vital sin a person can commit is the sin of apostasy and the sin of apostasy is what leads a person to eternal death and eternal separation from the Lord and His people. The sin of apostasy is the sin that rejects the plan of salvation through Jesus Christ His Son and His death on the cross as the propitiation for our sins. That means Jesus died in our place in order to satisfy a Holy God's wrath against the wages of sin. So lets learn how to identify the sin that leads to death and the sins that do not.