What does Isaiah 2:8 mean?
Isaiah is making a long list (Isaiah 2:6–8) explaining why God has rejected His people, including those living in the land of Judah. The Israelites are heavily influenced by the spiritual beliefs of their neighboring nations, including participating in fortune-telling (Isaiah 2:6).Their deal-making with foreigners has made the Israelites extremely wealthy in gold, silver, treasure, horses, and chariots (Isaiah 2:7). Do they believe the false gods they serve have provided this wealth to them? The number of idols in Judah suggests that's exactly what they believe.
Isaiah adds here that the land is filled with idols they have made with their own hands. He is mocking the fact that his countrymen bow down to what they themselves have crafted, believing it could provide something for them (Psalm 115:4–8; Habakkuk 2:18–19). It makes no sense to believe idols made by human hands could have any power to provide wealth and security.