For what is our hope, or joy, or crown of rejoicing? Is it not even you in the presence of our Lord Jesus Christ at His coming? For you are our glory and joy.1 Thessalonians 2:19, 20 (NKJV)
The fact that we shall one day stand at the judgment seat of Christ ought to motivate us to be faithful in spite of difficulties.
Paul said that the believers themselves would be his crown when he met them at the judgment seat. To be sure, some of the believers in the church were not living as they should, and some were a burden to Paul. But when he looked ahead and saw them in glory, they brought joy to his heart.However we will lose some of that joy if we go to Heaven empty-handed. The Christian who has not sincerely tried to win others to Christ will not experience this glory and joy when Christ returns.