Metaphysical meaning of Sceva (mbd)
Sceva, sçe'-vå (Gk.)--covered; obscured; secret; the left side; left-handed; vessel; utensil; implement; instrument; armament; gear; fitting.
The word of Truth cast out evil spirits and healed the sick at Ephesus, and this work was imitated by strolling Jewish exorcists. They used the same formulas that Paul used, but they had not been converted, or mentally purified, and the evil spirits turned on them and overpowered them so that they fled.
We find people who want to be healed without repentance; they want to be freed from the penalty of error but do not wish to do right. These ask for word formulas, magic, and they create a demand for the exorcists that imitate the Truth but are not in the understanding of the change of heart and thought that must accompany all true healing.