Romans 11:20

Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee.

Thou wilt say then, The branches were broken off, that I might be graffed in.

For if God spared not the natural branches, take heed lest he also spare not thee.

Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off.