According to Moses, this verse tells us that different groups of people lived in various places around the land God promised to the Israelites, with some living by the mountains and others near the sea. It helps us understand why the Israelites were worried about going to their new home, because other people were already living there.
Numbers 13:29: The Amalekites dwell in the land of the south: and the Hittites, and the Jebusites, and the Amorites, dwell in the mountains: and the Canaanites dwell by the sea, and by the coast of Jordan.
Numbers 13:29 might be seen as inconsistent with other parts of the Bible because it mentions specific groups of people living in certain areas, which might not align perfectly with other biblical accounts or external historical records about where these groups lived at different times. Additionally, the names and locations of these groups may differ slightly in other parts of the Bible, leading to perceived contradictions.