stumbling stone

And for such people the postulate which religion makes the head of the corner is rather a stumbling-stone.

The brother is troubled with the no-organization doctrine advocated by Johnson, editor of the Stumbling Stone.

It was clear to him that this man who had saved her life was the one stumbling-stone in his path.

They stumbled at him as a stumbling-stone and rock of offense.

Patronage is the stumbling stone here to true political action.