Christ Will Return as Judge

The Lord Jesus Christ will return one day to judge all of mankind in righteousness. Will Christ judge the righteous and the unrighteous together at that time? Or are there separate judgment dates for believers and unbelievers? What will be the reward of the righteous? Will all unbelievers suffer an equal punishment of condemnation, or are there degrees of punishment for the wicked? What must we do to prepare for Christ’s Day of Judgment?