Because Solomon chose his wives over God, God was angry at him and told him, “I will surely tear the kingdom from you, and will give it to your servant” (1 Kings 11:11). It was only because of God’s integrity and His loyalty to his father David that God did not take the entire kingdom away from him and his posterity. God told Solomon, “I will give one tribe to your son for the sake of My servant David and for the sake of Jerusalem which I have chosen” (13).
In 1 Kings 11:14-40, God details the opposition of three powerful enemies: Hadad the Edomite (14-22), Rezan, ruler of the Arameans (23-25), and especially Jeroboam the son of Nebat (26-40). The immediate cause of Hadad’s opposition was David’s army commander, Joab’s, extermination of the rest of the Edomite males of his generation. His resulting hatred emboldened his opposition to Solomon. The immediate cause of Rezan’s opposition was Solomon’s father, David’s slaughtering of his former army. The immediate cause of Jeroboam’s opposition was the visit from God’s prophet, Ahijah the Shilohite, who told him God was giving him rule over ten of the tribes of Israel because of Solomon’s idolatry and disobedience. Solomon heard about that prophecy and, combined with hearing from God that he would lose the majority of the kingdom, “Solomon sought therefore to put Jeroboam to death; but Jeroboam arose and fled to Egypt to Shishak king of Egypt, and he was in Egypt until the death of Solomon” (40).
It is interesting that there was an immediate cause of all of this opposition to Solomon, but there was also an ultimate cause. The ultimate cause was Solomon’s own sin and unfaithfulness. He was learning an immutable (unchanging) truth, that one cannot successfully oppose God without consequences. He was reaping the very thing he had sown. My dad often says, “Many people sow their wild oats and pray for a crop failure.” Perhaps that was Solomon. But, he was seeing noxious weeds choking the garden of his achievements and success.
Scripture gives us an avoidable maxim: “Do not be deceived, God is not mocked; for whatever a man sows, this he will also reap. For the one who sows to his own flesh will from the flesh reap corruption, but the one who sows to the Spirit will from the Spirit reap eternal life” (Gal. 6:7-8). Hosea would put it sowing to the wind and reaping a whirlwind (8:7). Eliphaz described it as plowing iniquity and sowing trouble harvesting the same (Job 4:8). However we put it, no one wants to set himself up as God’s enemy (Rom. 8:7; Jas. 4:4). It is a losing proposition that brings heartache in this life and infinitely more trouble in the life to come.
The Preacher Pollard Blog 
There are a lot of great historical thoughts here. Indeed everyone is growing a garden. My choices are the seeds and God will give the increase and return a harvest good or bad. In this way a man reaps what he says even if he has the preeminence of Solomon. We are responsible for every single choice we make. They are all chosen. God help us to make those choices that please him always. Amen
…reaps what he sows…