Shammil (Samuel) - Saul is Appointed King - Qur'anic

Taking Saul by the hand, Samuel led him to the children of Israel, but they insisted on a direct sign from Allah. Prophet Samuel told them to go outside the city to see the sign, which they did. Almighty Allah revealed: Have you not thought about the group of the children of Israel after (the time of) Moses?

When they said to a Prophet of theirs: 'Appoint for us a king and we will fight in Allah's Way."

He said: "Would you then refrain from fighting, if fighting was prescribed for you?"

They said: "Why should we not fight in Allah Way while we have been driven out of our homes and our children (families have been taken as captives)?"

But when fighting was ordered for them, they turned a way, all except a few of them. And Allah is All-A ware of the Zalimeen (polytheists and wrong-doers).

And their Prophet (Samuel) said to them: "Indeed Allah has appointed Saul as a king over you."

They said: "How can he be a king over us when we are better fitted than him for the kingdom, and he has not been given enough wealth."

He said: "Verily. Allah has chosen him above you and has increased him abundantly in knowledge and stature. And Allah grants His Kingdom to whom He wills. And Allah is All-sufficient for His creatures' needs, All-Knower."

And their Prophet (Samuel) said to them: "Verily! The sign of His kingdom is that there shall come to you At-Tabut (a wooden box), wherein is Sakinah (peace and reassurance) from your Lord and a remnant of that which Moses and Aaron left behind, carried by the angels. Verily, in this is a sign for you if you are indeed believers." Surah 2: 246-248

Saul Leads an Army - Qur'anic
Then when Saul set out with the army, he said: "Verily! Allah will try you by a river. So whoever drinks thereof he is not of me, and whoever tastes it not, he is of me, except him who takes (thereof) in the hollow of his hand."
Yet, they drank thereof all, except a few of them. So when he had crossed it (the river), he and those who believed with him, they said: "We have no power this day against Goliath and his hosts."
But those who knew with certainty that they were to meet their Lord, said: "How often a small group overcame a mighty host by Allah's Leave?" And Allah is with the patient.
And when they advanced to meet Goiath and his forces, they invoked: "Our Lord! Pour forth on us patience and make us victorious over the disbelieving people." Surah 2: 249-250