Isaiah 8:15

(...)

and blessed is he, whoever shall find no occasion of stumbling in me.

Let them alone; they are blind leaders of the blind. And if the blind lead the blind, both will fall into a ditch.

But he, looking upon them, said, What then is this which is written, "The stone which the builders rejected, the same hath become the cornerstone"?

From this time many of his disciples went back, and walked no more with him.

Why? Because they did not strive for it by faith, but as being by works. For they stumbled against the stone of stumbling;

but we preach Christ crucified, to Jews a stumblingblock, and to gentiles foolishness,

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