There was a man of the hill-country of Ephraim, whose name was Micah.
"Thou didst utter a curse"  (Judges 17:2).  The marginal reading indicates that the Hebrew here is "an adjuration" instead of "a curse." This is a direct reference to  Leviticus 5:1 which lays down God's law that anyone under such an adjuration shall respond with the truth under the penalty of God's judgment, if he should fail to do so.  Both Micah and his mother were aware of this Mosaic teaching, and Micah immediately confessed to his sin.  Significantly, Jesus Christ himself responded to such an adjuration in  Mark 14:61-62.