According to the author of Judges, the man went to the land of the Hittites and built a city there, naming it Luz, and people still call it that name today. Christians might see this as a story showing how places and names can last a long time, reminding them of God's presence over time.
Judges 1:26: And the man went into the land of the Hittites, and built a city, and called the name thereof Luz: which [is] the name thereof unto this day.
While Judges 1:26 mentions the man went to the land of the Hittites, Judges 1:21 notes the Jebusites were not driven out of Jerusalem, which portrays a contrasting outcome in the conquest narratives.
Judges 1:21: And the children of Benjamin did not drive out the Jebusites that inhabited Jerusalem; but the Jebusites dwell with the children of Benjamin in Jerusalem unto this day.