Day after day Saul waited, but without encouraging the people and inspiring confidence in God. Before the designated time had fully passed, he allowed himself to be discouraged by his difficult circumstances. Instead of trying to prepare the people for the service that Samuel was coming to perform, he indulged in unbelief. To seek God by sacrifice was a most solemn work; God required His people to search their hearts and repent of their sins, so that their offerings would be acceptable, and He could bless their efforts to conquer the enemy. But Saul had become restless, and the people, instead of trusting in God for help, were looking to the king to lead and direct them. BOE 312.1
Yet the Lord still cared for them and did not abandon them. He brought them into difficult places to convict them of how foolish it is to depend on human strength and that they should turn to Him as their only help. The time for testing Saul had come. Would he depend on God and patiently wait according to His command, showing that God could trust him as the ruler of His people, even under pressure? Or would he be dishonorable and unworthy of his sacred responsibility? Would the king listen to the Ruler of all kings? Would he turn the attention of his fainthearted soldiers to the One who has everlasting strength and deliverance? BOE 312.2
With growing impatience he waited for Samuel to arrive, blaming the prophet’s absence for the distress and desertion of his army. The appointed time came, but the man of God did not appear. God’s leading had delayed His servant. Feeling that he must do something to calm the people, Saul decided to call an assembly and offer sacrifice to seek divine aid. God had directed that only the priests should present sacrifices before Him, but Saul commanded, “Bring a burnt offering,” and he approached the altar and offered the sacrifice. BOE 312.3