5 And the man Micah had an house of gods, and made an ephod, and teraphim, and consecrated  one of his sons, who became his priest.
5 Now this man Micah had a shrine, and he made an ephod and some household gods and installed one of his sons as his priest.
5 And the man Micah had a shrine, and he made an ephod and household gods, and ordained
5 This man, Micah, had a private chapel. He had made an ephod and some teraphim-idols and had ordained one of his sons to be his priest.
5 The man Micah had a shrine, and made an ephod and household idols; and he consecrated one of his sons, who became his priest.
5 Micah set up a shrine for the idol, and he made a sacred ephod and some household idols. Then he installed one of his sons as his personal priest.
Matthew Henry's Commentary on Judges 17:5
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.