A question posed to those who believe in the resurrection of the flesh:

If those who belong to Christ in the resurrection of the dead attain eternity without undergoing a fundamental physical transformation, does this mean that gender differences will persist? In other words, will we continue to exist as brothers and sisters, retaining our gendered bodies forever?

The answer generally given to this question is yes, we will continue as sons and daughters of God. Some might argue that the Bible does not provide a clear answer to this question. However, the Scripture states:

Galatians 3
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²⁷ For as many of you as were baptized into Christ have put on Christ. ²⁸ There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus.

“In that place, there is no Greek or Jew, circumcised or uncircumcised, barbarian, Scythian, slave, or free, but Christ is all, and in all.” — Colossians 3:11

The way we often interpret these passages is that Christ has accepted all who believe in Him without distinction, and all are now one in Christ, regardless of their former identities. This is the apparent meaning, but when we delve deeper, we understand that there is more to it than just words. The phrases "have put on Christ" and "Christ is all, and in all" indicate a tangible reality beyond mere expression. The statement "there is no male and female" does not mean that gender differences will cease to exist in the new creation, but rather that gender will no longer exist. The phrase "the old has passed away; behold, the new has come" also implies more than just a verbal declaration.

When Christ rose from the dead, He did not return as the Son of Man, the earthly figure He was, but as the Son of God, in the form of God in heaven. In His resurrection, He has no gender; He has no earthly attributes such as nationality or ethnicity; He is neither Jew nor Gentile; He is neither learned nor unlearned; He is neither of the ruling class nor of the servant class. When He walked the earth as the Son of Man, He had a lineage, a gender, a profession, and a social status. By lineage, He was a Jew from the line of Abraham; by gender, He was male; by profession and social status, He was a carpenter from the working class. But in His resurrection, since He returned to His heavenly nature, earthly attributes no longer apply to Him because any spiritual being is without gender. God doesn't have gender, His Son also doesn't have gender, and angels of heaven too don't have gender.

Therefore, those who are in Christ have not only shed their old earthly attributes but have also undergone a transformation in their very being. They have been transformed from being children of man to being children of God. They have moved from being "born of the flesh" to being "born of the Spirit." This new being is not derived from the old Adam created in the Garden of Eden with gender. That being was done when it entered the grave in the body (person) of the Son of Man, Christ; what rose from the dead is a new being, a new creation, a spirit being without gender, the Son of God. That which was formed from dust in the Garden of Eden has returned to dust; but when he rose from the dead in the person of the Son of God, he was not reconstituted from dust but became a new being, born of the Spirit of God. This being is derived solely from Christ, the Son of God. Therefore, those who are in Christ are spirits without any earthly attributes, children of God.