‘Replacement Theology” teaches God has no more plans for Israel & the church has ‘replaced’ them, but this is a doctrine that’s proved wrong by many bible passages one of them found in Romans 11 which tells us that God is not yet done with Israel, even they had rejected Him.
But on the opposite side of the coin we have another kind of ‘Replacement Theology’ were some teach that in order to be saved the ‘church’ needs to be part of Israel, (in other words the church is replaced by Israel). As one of their main points they use Romans 11, which they interpret that gentile believers are grafted into ‘Israel’, and for that reason have to become like them. But this is also wrong, to see it more clearly I’m sharing this next article that contains some nice illustrations: