“and be ashamed.” Many people who are saved and have everlasting life never make the effort to live a truly godly life on earth. In the future kingdom of Christ there will be a distinct difference between those people who made the effort to live truly godly lives and those people who got saved but continued living selfishly and in sin. The people who have little or no rewards in the Millennial Kingdom will realize why that is, and will be ashamed of their selfish lives.
[For more on shame in the future life, see commentary on 1 John 2:28 and 2 Cor. 5:10, “good or evil.” For more on the future Millennial Kingdom, see Appendix 3, “Christ’s Future Kingdom on Earth”].