There is no such thing as replacement theology... you can't replace something that never existed to start with. Seriously where do you get that Israel has ever been God's chosen people?
Really? Seriously?
Who are Israelites; to whom pertaineth the adoption, and the glory, and the covenants,
and the giving of the law, and the service of God, and the promises;
In Acts 7:38 we learn that the congregation of Israel was called the church
in the wilderness, in the days of Moses.
The word translated congregation in the Old Testament is ekklesia in the Septuagint
the same identical Greek word that is always translated church in the New Testament.
Israel was both church and state. for years ruled by a system of judges,
over fifties, hundreds, thousands, God being there King, then they rejected him.
For thou art [an holy people] unto the Lord thy God, and the Lord hath chosen thee
to be [a peculiar people] unto himself, [above all the nations] that are upon the earth.
Now therefore, if ye will obey my voice indeed, and keep my covenant, then ye shall
be [a peculiar treasure] unto me above all people: for all the earth is mine:
And the Lord hath avouched thee this day to be [his peculiar people], as he hath
promised thee, and that thou shouldest keep all his commandments;
1Moreover, brethren, I would not that ye should be ignorant, how that all our fathers
were under the cloud, and all passed through the sea;
2And were all baptized unto Moses in the cloud and in the sea;
3And did all eat the same spiritual meat;
4And did all drink the same spiritual drink: for they drank of
that spiritual Rock that followed them: and that Rock was Christ.
38This is he, that was in the church in the wilderness with the angel which spake to him in
the mount Sinai, and with our fathers: who received the lively oracles to give unto us:
He clave the rocks in the wilderness, and gave them drink as out of the great depths.
52But made his own people to go forth like sheep, and guided them in the wilderness
like a flock. And he led them on safely, so that they feared not: but the sea overwhelmed
their enemies. And he brought them to the border of his sanctuary, even to this mountain,
which his right hand had purchased.
now us
But ye are [a chosen generation], a royal priesthood, an holy nation, a peculiar people;
that ye should shew forth the praises of him who hath called you out of darkness
into his marvellous light:
Who gave himself for us, that he might redeem us from all iniquity,
and purify unto himself a peculiar people, zealous of good works.