To be used, dethrone the idols of money, success, pride. Enthrone the Lord - determine to obey only Him - commit yourself to His service and glory.
Samuel was a praying prophet. Prophetic intercession that brought about contrite calling on God by the people. It was not military might that brought Israel deliverance.
There is no doubt this was no ordinary thunderstorm. The Word says "the LORD." It was a personal, divine action putting victory in the hands of His people. The Lord guarantees His presence of power with us as with the first Apostles who went out.
Remembering past help and victories strengthens our faith for what faces us now, and that ahead.
Set up your Ebenezer.
Samuel served as a 'circuit' judge. Interestingly, later we read of "schools of the prophets" in the same name places, leading to the suggestion that Samuel was the founder of them at this time. As a priest he ministered to the Lord for the people. "Built an altar," a
deviation from Deuteronomy 12:13, probably because of the public disorder of the period. His devotion to prayer and sacrifice evidenced his true priesthood before God. Service and worship should mark our lives as it did his. Political leadership that has prayer as its
foundation will enrich and exalt a nation.
2. WEIGHTY - SPIRITUAL SAMUEL THE JUDGE AND
PROPHET (1 Samuel 7:1 to 8:22)
2.1. POLITICAL LEADERSHIP FOUNDED IN PRAYER (1
Samuel 7:1-17)
2.1.1. SAMUEL FAITHFULLY GAVE THE WORD (1 Samuel 7:3-17)
1 Samuel 7:2 "... and all the house of Israel lamented after the LORD."
Ellicott comment: "This lamentation or 'hungering after the Lord' was a gradual result of Samuel's unwearied labors. The assertion of 3:19 that "none of his words fell to the ground" especially belongs to
this period of restless activity."
2.1.2. SAMUEL CALLED FOR REPENTANCE AND RENEWAL
1 Samuel 7:3 "Then Samuel spoke to all the house of Israel, saying, "If you return to the Lord with all your hearts, then put away the foreign gods
and the Ashtoreths from among you, and prepare your hearts for the Lord, and serve Him only; and He will deliver you from the hand of the Philistines.""
2.1.3. SAMUEL GATHERED THE PEOPLE TO PRAYER
1 Samuel 7:5 "And Samuel said, Gather all Israel to Mizpeh, and I will pray for you unto the LORD."
2.1.4. SAMUEL RECEIVED MIRACLE CO-OPERATION FROM GOD
1 Samuel 7:10 "And as Samuel was offering up the burnt offering, the Philistines drew near to battle against Israel: but the LORD thundered with a
great thunder on that day upon the Philistines, and discomfited them; and they were smitten before Israel."
Mark 16:20 "And they went forth, and preached every where, the Lord working with them, and confirming the word with signs following. Amen."
2.1.5. SAMUEL SET UP A PERMANENT REMINDER
1 Samuel 7:12 "Then Samuel took a stone and set it up between Mizpah and Shen, and called its name Ebenezer, saying, "Thus far the Lord has
helped us.""

Remember His deliverances. 
Remember His preservation. 
Remember His answers to prayer. 
Remember His miracles. 
Remember His faithfulness. 
Remember His lovingkindness. 
Remember His provision.
2.1.6. SAMUEL FAITHFULLY MINISTERED TO THE LORD AND HIS PEOPLE
1 Samuel 7:15-17 "And Samuel judged Israel all the days of his life. 16 And he went from year to year in
circuit to Bethel, and Gilgal, and Mizpeh, and judged Israel in all those places. 17 And his return was to Ramah; for there was his house; and there he judged Israel; and there he built an
altar unto the LORD."