King James Version
But rejoice, inasmuch as ye are partakers of Christ's sufferings; that, when his glory shall be revealed, ye may be glad also with exceeding joy.English Standard Version
But rejoice insofar as you share Christ's sufferings, that you may also rejoice and be glad when his glory is revealed.New International Version
But rejoice that you participate in the sufferings of Christ, so that you may be overjoyed when his glory is revealed.