Paul has been living above the world, manifested by his faith in Jesus Christ, which came through Jesus' personal revelation of himself to Saul (Paul). He was living above the world when he pronounced the true Gospel of the Lord Jesus Christ, iterating that there is only one Gospel, whether it be preached by Paul, Peter, James, John, or anyone else.
In this devotion we find that now Paul, by the leadership of God (above the world), goes to Jerusalem to communicate the Gospel to those at Jerusalem. He took Barnabas and Titus with him. He spoke publicly to all the disciples, but he communicated with the apostles one by one, verifying that the Gospel which Paul preached is precisely the same Gospel that is being preached at Jerusalem by the other apostles.
Titus, who was a Greek (Gentile), was not required by the apostles at Jerusalem to be circumcised, because they all understood the freedom that the Gospel enabled for every believer and because there were many at Jerusalem who had feigned faith in Jesus Christ in order that they may bring into bondage again those who had left the ordinances which were shadows of good things to come, they being fulfilled in the work of Jesus Christ.
Many Legalists would love to bring believers back under the bondage of the law, requiring not only circumcision, but also celebration of holidays and symbolisms. Even in our day some "Jewish Christians" would love for our churches to take up the celebration of their Jewish holidays and symbolisms: I get printed material often which give evidence of this.
Gal. 4:9 But now, after that ye have known God, or rather are known of God, how turn ye again to the weak and beggarly elements, whereunto ye desire again to be in bondage?
Let us live above the world under the auspices of the great Gospel of Jesus Christ which was received from God above and not from men. Let us understand that our Gospel is a heavenly one and has set us free from the law. Rom. 8:2 For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death. Sin has no more power over us: Rom. 6:14 For sin shall not have dominion over you: for ye are not under the law, but under grace.
If sin has no more power over us and we are free from the law, then let us live in liberty above the world to the glory of our Savior, Jesus Christ.