1 Kings 10:28

And Solomon had horses brought out of Egypt, and linen yarn: the king’s merchants received the linen yarn at a price.

Solomon had horses brought out of Egypt. In doing so he disregarded the divine command that Israel's king was not to multiply horses to himself nor to cause the people to return to Egypt in order to obtain them. His provision of military equipment in this manner was guided by human judgment rather than by God's word. Such a course shows how sin blinds a person to plain instruction.