This is a perfect picture of the manners of the time. It is probable that the father showed more than usual hospitality, in order to ensure the kind treatment of his daughter by her husband. These particulars are given to account for their journey running so far into the evening, which was the immediate cause of the horrible catastrophe which followed.
Related Commentaries of Judges 19:9
Judges 19:9
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 drawethe 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.