How do we know Saul was chosen by God?

God's choice of Saul as king was confirmed through a series of divinely orchestrated signs as described in 1 Samuel 10. Samuel expressly told Saul what would happen as he journeyed home, including meeting specific individuals and receiving offerings. Each of these events unfolded precisely as Samuel predicted, providing clear evidence of God's hand at work. Moreover, the transformation Saul experienced, where he prophesied among the prophets, signified God's equipping him for leadership. Thus, Saul's election was not merely a human decision but a sovereign act of God's grace.