The ten commandments of the Law of Moses are not part of the doctrine of the Kingdom of God as well as the rite of circumcision. The Kingdom of God is the domain of godliness, the empire of mercy, the government of continuous improvement: "Be merciful, just as your Father is merciful" Luke 6:36.
Spirituality fundamentally consists of living the spiritual gifts, or in more philosophical terms, living the perfect virtues. The spiritual gifts are way, truth, and life, the gifts are way because we live them, they are true because they are precision and accuracy, and when the truth is not enough, the gifts are life, as Jesus explains in John 14:6. The doctrine taught by Jesus is a fundamentally ethical doctrine, to live the gifts is to live ethically because all spiritual gifts are all good by definition (spiritual gifts are perfections). The problem with the ten commandments is that the concept of progressiveness is absent, compliance with the commandments does not imply growth. The ten commandments are a set of imperatives or orders that are simply to indicate to us where the sin is: "Nevertheless, I would not have known what sin was had it not been for the law. For I would not have known what coveting really was if the law had not said, ´You shall not covet.´"Romans 7:7, and more, according to the apostle Paul the law of Moses is counterproductive because the law at some point inclines us to error: "I found that the very commandment that was intended to bring life actually brought death. For sin, seizing the opportunity afforded by the commandment, deceived me, and through the commandment put me to death" Romans 7:10-11.
The ten commandments work on a very simple idea, we are all sinners, but if Jesus with his life freed us from this condition of servitude to error, we are also free from the law: "They tie up heavy, cumbersome loads and put them on other people's shoulders, but they themselves are not willing to lift a finger to move them" Matthew 23:4. Following Jesus is to follow the path of righteousness, this is to grow spiritually as people.