"He will be as a sanctuary, but a stone of stumbling and a rock of offense" - Isaiah 8:14a
For those who fear the LORD (v13), God is their sanctuary, their safe place, a refuge from the storm. But for those who fear the circumstances or refuse to trust in the LORD and fear Him, He will be like another kind of stone. He will be a stone in their path over which they will stumble and fall.
Either way, He is there. Either way, He is a stone. He is a stone of safety or a stone of stumbling.