Chapter 13 of Zechariah opens with another outpouring...an anointing upon the House of David in that now all sin and impurity would be washed away. This is followed by the LORD's declaration that all idols and false prophets will be removed from the land, along with the unclean spirit that animates the false prophets. When former false prophets attempt to hide, they will be discovered. The last three verses are distinctly Messianic, as the Lord awakens the sword against His Shepherd and Associate. The LORD sets out to test and refine a remnant of Israel.