In Saul God had given to Israel a king after their own heart, as Samuel said when the kingdom was confirmed to Saul at Gilgal, "Behold the king whom ye have chosen, and whom ye have desired" (1 Samuel 12:13). Comely in person, of noble stature and princely bearing, his appearance accorded with their conception of royal dignity; and his personal valor and his ability in the conduct of armies were the qualities which they regarded as best calculated to secure respect and honor from other nations. They felt little solicitude that their king should possess those higher qualities which alone could fit him to rule with justice and equity. They did not ask for one who had true nobility of character, who possessed the love and fear of God. They had not sought council from God as to the qualities a ruler should possess, in order to preserve their distinctive, holy character as His chosen people. They were not seeking God's way, but their own way. Therefore God gave them such a king as they desired--one whose character was a reflection of their own. Their hearts were not in submission to God, and their king also was unsubdued by divine grace. Under the rule of this king they would obtain the experience necessary in order that they might see their error, and return to their allegiance to God. (Patriarchs and Prophets, 636)
Reflection: Often God, out of love, will allow us to have what we want even though it's not good; but He even uses this for our character building and learning process.