17:11. He was content, and abode with the man, and was unto him as one of his sons.

17:12. And Michas filled his hand, and had the young man with him for his priest, saying:

17:13. Now I know God will do me good, since I have a priest of the race of the Levites.

Judges Chapter 18

The expedition of the men of Dan against Lais: in their way they rob
Michas of his priest and his gods.

18:1. In those days there was no king in Israel, and the tribe of Dan sought them an inheritance to dwell in: for unto that day they had not received their lot among the other tribes.

Not received, etc… They had their portions assigned them, Jos. 19.40.
But, through their own sloth, possessed as yet but a small part of it.
See Judges 1.34.

18:2. So the children of Dan sent five most valiant men, of their stock and family, from Saraa and Esthaol, to spy out the land, and to view it diligently: and they said to them: Go, and view the land. They went on their way, and when they came to mount Ephraim, they went into the house of Michas, and rested there:

18:3. And knowing the voice of the young man the Levite, and lodging with him, they said to him: Who brought thee hither? what dost thou here? why wouldst thou come hither?

18:4. He answered them: Michas hath done such and such things for me, and hath hired me to be his priest.