Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither does corruption inherit incorruption.
All Commentaries on 1 Corinthians 15:50 Go To 1 Corinthians 15
Isaac of Syria
AD 700
By “incorruption” he means the knowledge of that other world, and by “corruption” and “flesh and blood” he designates the corrupting passions of both the soul and the body, the realm of whose motions is in the “mind of the flesh.” … And by the “kingdom of God” he means the lofty, noetic theoria of the blessed intuitions of that eternal effulgence, into which the holy soul is permitted to enter only by means of the incorruptible intuitions that are exalted above corruption, flesh and blood.