The resurrection of the dead was a matter of grave concern in the Corinthian assembly. Resurrection deniers amongst the brethren in Corinth put the foundation of the Gospel of the Kingdom, the Gospel Messiah taught, at risk and undermined the preaching of the Gospel, the salvation experience, and the hope of eternal life.
Additionally, the corrupted teaching against the resurrection caused the character of some to be corrupted, leading them away from righteous living to a sinful lifestyle.