2 Chronicles 1:16-17. At the beginning of Solomon's reign, right after he has asked for and been granted wisdom from God, he is building his military. Here we learn that he has imported horses from Egypt and Kue, and a chariot from Egypt. Likewise, through Israel, these things where exported to all of the kings of the Hittites and Syria.

Solomon was granted wisdom and, because God was pleased with this request, he was granted everything else as well - power, possessions, greatness. Immediately, though, we see the seeds of corruption beginning to be planted as he begins to import the weapons of war, to build them up, and then to export them. I have written about this passage before and how one of God's early rules for the Israelite kings was they what were not to have many horses and chariots, so Solomon is clearly already going wrong. And we see that the import of just one chariot and a few horses begins the buildup of these things in Israel and the supply of war-making supplies to the nations surrounding Israel.

Solomon was granted prosperity, but Solomon should have known that God did not intend this to apply to weapons because God had told his people, many years ago, that their kings were not to amass horses and chariots. The Hittites and the kings of Syria became well-armed through the blessings bestowed on Solomon by God. This is not what God wanted for Solomon nor for his people. In peace, it may have looked acceptable to Solomon to sell arms to his neighbors, but peace does not last forever in this world, and Solomon was wise,  he should have known that.

This is a lesson for us. God grants us all many blessings that make us able to do some great things, but if we use them improperly, they also enable us to do some very terrible things, things that may not affect us, but may affect future generations. God doesn't constantly look over our shoulder telling us what to do with our gifts. He may have only told us once, many years ago. We are expected to listen and to remember.