Why trimmest thou thy way...? — The verb is the same as that rendered “amend” in Jeremiah 7:3; Jeremiah 7:5, and was probably often on the lips of those who made a show of reformation. Here it is used with a scornful irony, “What means this reform, this show of amendment of thy ways, which leads only to a further indulgence in adulterous love?”
Hast thou also taught the wicked ones thy ways. — Better, hast thou also taught thy ways wickednesses. The professed change for the better was really for the worse.