He is the image of the invisible God, the firstborn over all creation.
COLOSSIANS 1:15
In establishing Jesus’ sovereign power and authority over all things, the apostle Paul affirms the believers’ standing in Him in the face of those who seek their own power and authority.
The firstborn son is considered the beginning of a man’s strength, the one who upholds his father and his father’s name, power and authority (GEN49:3).
God establishes His covenant with Abraham that He will multiply him exceedingly and he will be a father of many nations. God will be God to him and his descendants after him, and the sign of the covenant God gives is that every male child among him must be circumcised, that is, he who is born in his house or bought with money from any foreigner who is not his descendant (GEN17:2-13).
God has qualified believers in Jesus to be partakers of the inheritance of the saints in the light, having delivered them from the power of darkness and transferred them into the kingdom of His Son in whom they have redemption through His blood, the forgiveness of sins (COL1:12-14).
Jesus is the image of the invisible God, the firstborn over all creation for by Him all things were created that are in heaven and on earth. All things were created through Him and for Him and He is before all things and in Him all things consist, and He is the head of the church who is the firstborn from the dead that in all things He may have the preeminence (COL1:15-18). God has put all things under His feet and has given Him to be head over all things to the church which is the fullness of Him who fills all in all (EPH1:22-23).
As such, the believers are to beware lest anyone cheat them through philosophy and empty deceit according to the traditions of men and not according to Christ (anointed Messiah). For in Him dwells all the fullness of the Godhead bodily, and the believers are complete in Him who is the head of all principality and power. In Him they have been circumcised with the circumcision made without hands by putting off the body of the sins of the flesh by the circumcision of Christ (COL2:8-11).
So they are to let no one judge them regarding Jewish (from the name Judah, Abraham’s great grandson) rituals which are a shadow of things to come, for the substance is of Christ. They are not to be cheated of their reward by those who take delight in false humility and worship of angels, who are vainly puffed up by their fleshly (physical) mind and not holding fast to the Head (Jesus) (COL2:16-19). For the believers have put on the new man who is renewed in knowledge according to the image of Him who created them where there is neither Greek nor Jew, circumcised nor uncircumcised, barbarian, Scythian, slave nor free, but Christ is all and in all (COL3:10-11).