Albert Barnes Commentary 2 Samuel 24:6

"then they came to Gilead, and to the land of Tahtim-hodshi; and they came to Dan-jaan, and round about to Sidon," — 2 Samuel 24:6 (ASV)

To Gilead - Jazer was in the plain. They passed from there to the mountain district of Gilead.

The land of Tahtim-hodshi - The text here is corrupt, as no such land is known. Possibly the right reading is "the land of the Hittites" (Judges 1:26); "hodshi" may be a fragment of a sentence that mentioned in what month (חדשׁ, chodesh) they arrived there, just as 2 Samuel 24:8 relates that they returned to Jerusalem at the end of nine "months."

Dan-jaan - The versions read "Dan-jaar," i.e., Dan in the wood. Whatever is the meaning of "Jaan," there can be little doubt that Dan (the ancient Laish) is meant, both from its position and importance as the northern boundary of Israel, and from its connection with Zidon.