Because of passages like these...
(Eph 3:2) If ye have heard of the dispensation of the grace of God which is given me to you-ward:
(Eph 3:3) How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
(Eph 3:4) Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
(Eph 3:5) Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit;
(Eph 3:6) That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:
(Eph 3:7) Whereof I was made a minister, according to the gift of the grace of God given unto me by the effectual working of his power.
(Eph 3:8) Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ;
(Eph 3:9) And to make all men see what is the fellowship of the mystery, which from the beginning of the world hath been hid in God, who created all things by Jesus Christ:
(Eph 3:10) To the intent that now unto the principalities and powers in heavenly places might be known by the church the manifold wisdom of God,
(Eph 3:11) According to the eternal purpose which he purposed in Christ Jesus our Lord:
(Eph 3:12) In whom we have boldness and access with confidence by the faith of him.
(Eph 3:13) Wherefore I desire that ye faint not at my tribulations for you, which is your glory.
(Eph 2:11) Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands;
(Eph 2:12) That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
(Eph 2:13) But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
(Eph 2:14) For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us;
(Eph 2:15) Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace;
(Eph 2:16) And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby:
(Col 1:18) And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence.
(Act 20:28) Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.
There seems to be a big difference between the Commonwealth of Israel and the Church. Both in future plans and past differences.
(Eph 3:2) If ye have heard of the dispensation of the grace of God which is given me to you-ward:
(Eph 3:3) How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
(Eph 3:4) Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
(Eph 3:5) Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit;
(Eph 3:6) That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:
(Eph 3:7) Whereof I was made a minister, according to the gift of the grace of God given unto me by the effectual working of his power.
(Eph 3:8) Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ;
(Eph 3:9) And to make all men see what is the fellowship of the mystery, which from the beginning of the world hath been hid in God, who created all things by Jesus Christ:
(Eph 3:10) To the intent that now unto the principalities and powers in heavenly places might be known by the church the manifold wisdom of God,
(Eph 3:11) According to the eternal purpose which he purposed in Christ Jesus our Lord:
(Eph 3:12) In whom we have boldness and access with confidence by the faith of him.
(Eph 3:13) Wherefore I desire that ye faint not at my tribulations for you, which is your glory.
(Eph 2:11) Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands;
(Eph 2:12) That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
(Eph 2:13) But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
(Eph 2:14) For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us;
(Eph 2:15) Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace;
(Eph 2:16) And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby:
(Col 1:18) And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence.
(Act 20:28) Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.
There seems to be a big difference between the Commonwealth of Israel and the Church. Both in future plans and past differences.