Problem: This verse says the Amalekites and Canaanites “dwell in the valley.” But verse 45 says the opposite, namely, they “dwelt in that mountain.”
Solution: There are two possibilities. One is that these two verses may be referring to different groups. Some of them may have lived in the mountain and some in the valley. Or, it may have reference to the same people who lived in a valley or plateau which was also a mountain relative to the lower area around it from which they “came down” to fight (v. 45).
