2 Kings 4:40

they cried out The bitter taste shewed them that something was wrong, and their thoughts at once suggested that what they had eaten was poisonous. The fruit of the colocynth would produce sickness very soon, but there is no reason to suppose that there was enough in the pottage to kill.

O thou man of God The R.V. omits -thou", and thus improves both rhythm and language.

they could not eatthereof] They had only just tasted the noxious dish and so no ill effects had followed.