New Defender's Study Bible Notes
2:10 received not. Those who refused “the truth” (that is, Christ—John 14:6) before the rapture will “perish” under the rule of the man of sin. There will be no second chance after the rapture for any who understood but rejected the gospel before the return of Christ. It is, therefore, desperately urgent for all such people (no doubt especially including Americans, who have had every opportunity to receive Christ), to believe on Christ for salvation before He returns. “Behold, now is the day of salvation” (II Corinthians 6:2).