Romans 11:21

21 for if God spared not the natural branches, neither will he spare thee.

Romans 11:21 In-Context

19 Thou wilt say then, Branches were broken off, that I might be grafted in.
20 Well; by their unbelief they were broken off, and thou standest by thy faith. Be not highminded, but fear:
21 for if God spared not the natural branches, neither will he spare thee.
22 Behold then the goodness and severity of God: toward them that fell, severity; but toward thee, God's goodness, if thou continue in his goodness: otherwise thou also shalt be cut off.
23 And they also, if they continue not in their unbelief, shall be grafted in: for God is able to graft them in again.
The American Standard Version is in the public domain.