Romans 11:17-24

But if some of the branches were broken off, and you [Gentiles], being like a wild olive shoot, were grafted in among them to share with them the rich root of the olive tree, do not boast over the [broken] branches and exalt yourself at their expense. If you do boast and feel superior, remember that it is not you who supports the root, but the root that supports you. You will say then, “Branches were broken off so that I might be grafted in.” That is true. They were broken off because of their unbelief, but you stand by your faith [as believers understanding the truth of Christ’s deity]. Do not be conceited, but [rather stand in great awe of God and] fear [Him]; for if God did not spare the natural branches [because of unbelief], He will not spare you either. Then appreciate the gracious kindness and the severity of God: to those who fell [into spiritual ruin], severity, but to you, God’s gracious kindness—if you continue in His kindness [by faith and obedience to Him]; otherwise you too will be cut off. And even they [the unbelieving Jews], if they do not continue in their unbelief, will be grafted in; for God has the power to graft them in again. For if you were cut off from what is by nature a wild olive tree, and against nature were grafted into a cultivated olive tree, how much easier will it be to graft these who are the natural branches back into [the original parent stock of] their own olive tree?