'Troubling' in the Bible

When the people heard this troubling word they mourned; no one put on his ornaments.

So the five men journeyed on and arrived in Laish. They noticed that the people there were living securely, like the Sidonians do, undisturbed and unsuspecting. No conqueror was troubling them in any way. They lived far from the Sidonians and had no dealings with anyone.

For we have been sold -- both I and my people -- to destruction and to slaughter and to annihilation! If we had simply been sold as male and female slaves, I would have remained silent, for such distress would not have been sufficient for troubling the king."

In the troubling thoughts of the dreams in the night when a deep sleep falls on men,

When I tried to make sense of this, it was troubling to me.