There are many Keys To God's kingdom, which Jesus Christ brought to us. These from 1 Corinthians 15, were taught by Apostle Paul, with a most profound understanding.
A most important ouote from within:
1 Corinthians 15:50
50: Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption.
1 CORINTHIANS 15-STUDY GUIDE
Keys To God's Kingdom
1 Corinthians 15:1-2 Apostle Paul declares his preached gospel to his brethren 1 Corinthians 15:3-4 Christ's Death is According to the Scriptures 1 Corinthians 15:5-7 The risen Christ Seen by Cephas, five hundred brethren, all of the apostles. 1 Corinthians 15:8-11 Paul sees Christ last, who calls himself the least of the apostles due to persecution of the church of God 1 Corinthians 15:8-11 Paul sees Christ last, who calls himself the least of the apostles, due to persecution of the church of God 1 Corinthians 15:12-17 Faith in the Resurrection 1 Corinthians 15:18-22 In Christ shall all be made alive 1 Corinthians 15:23 Christ's Coming - Delivered up the Kingdom to God-The last enemy - death 1 Corinthians 15: 29-24 Baptized for Resurrection - Awake to righteousness, and sin not; 1 Corinthians 15:35-44 The bodies-all flesh is not the same flesh-celestial, terrestrial ...Spiritual 1 Corinthians 15:45-49 Adam, the first Man of earth- the second is the Lord from heaven ... We bear both images 1 Corinthians 15:50-58 KEYS TO HEAVEN: The Mystery Of Inheriting The Kingdom Of God-not in the flesh and blood, but being incorrupt to receive immortality