This statement "The council validates or enthusiastically endorses those who are in Christ who have endured in faith to the end." has some validity. . But the truth is that only those who "keep His works to the end" will actually reign with Christ [Rev 2:25 -28]. This is confirmed by Paul in 2 Tim 2:12. All who believe in Christ will be "with Him" in eternity [1 Thess 5:10] but only enduring believers will reign with Him.