Shimei said:
I believe the crown (rewards) have to do with relationships. There is nothing better....
Jesus took a crown of thorns, that we may have a crown of life.
All who come to Christ, receive THE reward, which is His life, and in His life we receive all that God has prepared for us.
The crown(s) that believers receive are life, righteousness, and glory through faith in Jesus Christ. All those who are in Christ receive them.
In this life, Paul referred to those whom he has preached the gospel to, and nurtured in the faith, are his crown. They are also his reward for laying the foundation (Jesus). And others are rewarded as they build on that foundation. They are rewarded in the fact that they see the fruit of their labor, in those who have grown in the faith; not that they get something extra in the age(s) to come.
Preaching a gospel of works, is building on the foundation with wood, hay, and straw, and the reward will be burned up. His efforts will produce nothing of value in the hearts of those whom he has shared.
For we are God's fellow workers;
you are God's field, God's building. According to the grace of God which was given to me, as a wise master builder I laid a foundation, and another is building upon it. But
let each man be careful how he builds upon it. For no man can lay a foundation other than the one which is laid, which is Jesus Christ. Now if any man builds upon the foundation with gold, silver, precious stones, wood, hay, straw, each man's work will become evident; for the day will show it, because it is to be revealed with fire; and the fire itself will test the quality of each man's work. If any man's work which he has built upon it remains, he shall receive a reward. If any man's work is burned up, he shall suffer loss; but he himself shall be saved, yet so as through fire."