171 There was a man of the hill country of Ephraim, whose name was Micah. 2 And he said to his mother, "The 1,100 pieces of silver that were taken from you, about which you uttered a curse, and also spoke it in my ears, behold, the silver is with me; I took it." And his mother said, "Blessed be my son by the Lord." 3 And he restored the 1,100 pieces of silver to his mother. And his mother said, "I dedicate the silver to the Lord from my hand for my son, to make a carved image and a metal image. Now therefore I will restore it to you." 4 So when he restored the money to his mother, his mother took 200 pieces of silver and gave it to the silversmith, who made it into a carved image and a metal image. And it was in the house of Micah. 5 And the man Micah had a shrine, and he made an ephod and household gods, and ordained[1] one of his sons, who became his priest. 6 In those days there was no king in Israel. Everyone did what was right in his own eyes.
Matthew Henry's Commentary on Judges 17:1-6
Commentary on Judges 17:1-6
(Read Judges 17:1-6)
What is related in this, and the rest of the chapters to the end of this book, was done soon after the death of Joshua: see Judges 20:28. That it might appear how happy the nation was under the Judges, here is showed how unhappy they were when there was no Judge. The love of money made Micah so undutiful to his mother as to rob her, and made her so unkind to her son, as to curse him. Outward losses drive good people to their prayers, but bad people to their curses. This woman's silver was her god, before it was made into a graven or a molten image. Micah and his mother agreed to turn their money into a god, and set up idol worship in their family. See the cause of this corruption. Every man did that which was right in his own eyes, and then they soon did that which was evil in the sight of the Lord.