Judges 19:9
And when the man rose up to depart, he, and his concubine, and his servant, his father in law, the damsel’s father, said unto him, Behold, now the day draweth toward evening, I pray you tarry all night: behold, the day groweth to an end, lodge here, that thine heart may be merry; and to morrow get you early on your way, that thou mayest go home.
The man rose to leave with his concubine and his servant, but the woman's father pressed him to remain through the night because the day was drawing toward evening and growing to an end, offering lodging and a merry heart with the plan to rise early the next morning to go home. That invitation belongs to the reading that sets forth the evils that follow when everyone does what is right in his own eyes. The calling of the concubine's father his father-in-law confirms that a concubine was legally a wife, though of lower rank or enslaved status.
The verse stands in chapters 17 to 21, which are placed at the end of the book but record events from the early part of the judges' history. That closing section comes earlier in time than chapters 11 to 16 with their accounts of the house of Gideon, Jephthah and his daughter, and Samson, so that the real continuous story ends with chapter 16. The backsliding recorded there gives no leave to do evil with impunity.
The verse belongs to a record of Israel's backsliding and gross immorality prevailing in the latter part of the period of the judges, when people did what seemed right in their own eyes, showing the evils, disgrace, and punishment that followed. In particular it belongs to the account of the crime at Gibeah, whose wrongdoing implicated the whole tribe of Benjamin. The closing chapters to which it belongs record internecine strife, ruffianism, and bloodshed.
The episode values hospitality above a woman's virtue and tribal loyalty above justice, but neither custom excuses sin. The book records this episode as an example of fearful backsliding alongside God's mercy and goodness.