I cried unto God with my voice, even unto God with my voice; and He gave ear unto me. In the day of my trouble I sought the Lord. My hand was stretched out in the night without ceasing. … – Psalm 77:1,2

Turn to the seventy-seventh Psalm, and you have a battlefield there. Should you ever have to fight the same battle, by looking through this Psalm, you will see David’s shields and spears, and you will soon learn how to screen yourself with the one, and how to do exploits with the other. Here is David fighting with despondency-an old enemy of mine. I daresay some of you are afflicted with it. But observe how he fought with it. The first weapon he drew out of the scabbard was the weapon of all-prayer. And how grandly he used it! “I cried unto God with my voice, even unto God with my voice.” Satan trembles when he hears the sound of prayer. They are the conquering legions that know how to pray. Despondency soon flies when a man knows how to ply this all-conquering and ever-useful weapon of petition to the Most High.

Then note how he used this weapon continually. “My hand was stretched out all night,” saith he. If the first prayer did not help him, he prayed again; if an hour’s prayer did not bring him peace, he would pray two hours; and all night long he kept at it. You will get a like result too, my brother, if you exercise a like perseverance-you must get a like result if you know how to linger at the mercy-seat. When he had used the weapon of prayer, what did he do next? He took out another spear. It was that of remembering God. He had long enough pored in thought over himself and his present sinfulness and weakness, and now he remembered God’s mercy, God’s faithfulness, God’s lovingkindness, God’s power, God’s covenant, God in the person of Christ. Oh! this is indeed to prepare a salvo against the enemy, and to fortify one’s own position with fresh succours. He can win the battle that knows how to use this artillery of remembering God. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0972.cfm

(For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds;) – 2 Corinthians 10:4

When I have seen a text sometimes in the hand of the enemy made use of against the deity of Christ, or against the doctrine of election, or against some other important and vital doctrine, I have not felt at all inclined to give up the text or think lightly of it. I rather admire those Americans in the South, who when they had lost some guns, were asked by the commanding officer whether they had not spiked the guns before they gave them up to the foe? “Spiked them! no,” said they, “we did not like to spoil such beautiful guns; we will take them again tomorrow.” And so they did. I would not have a text touched. Grand old text! we honor thee even while we cannot keep the field or ward thee from the aggression of the invader. But shall we spoil it, or give it up as lost? Never, we will take it out of the hand of the enemy, use it for the defense of the gospel, and show that it does not mean what they think, or answer the ends to which they would apply it. Are we baffled in attack, or do we lose ground in an argument, it is for us by more diligent study, and closer research, to take the guns, the good old guns, and use those which the enemy used against ourselves-to turn them round and use them against him. Depend upon it, the great temple of truth is not like a house divided against itself. Nothing equivocal or prevaricating hath come forth at any time from the mouth of the Lord. As for our understanding, it is always weak, and as for our tactics in upholding the right, they are often at fault. The weapons of our warfare are good, it is the hands that wield them that are so unskillful. But the word of God is steadfast; it does not change with the times or yield to suit any man’s purpose. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0972.cfm

And the priest said, The sword of Goliath the Philistine, whom thou slewest in the valley of Elah, behold, it is here wrapped in a cloth behind the ephod… – 1 Samuel 21:9

Did you ever have a personal, mental, moral conflict with some great dragon of besetting sin? If so be you have been enabled to smite it valiantly, and slay it utterly, I know you have gained trophies to hang in the house of God. To do so will be of no small advantage to ourselves, because you can take them down and use them in the future; and you will find they are footholds of your strength to fight with the next sin that comes upon you. The strength which God has educated and fostered in the last struggle will greatly assist you in the next. The man who gives way to one sin will very readily give way to another, but a man who through God’s grace has won a very high vantage ground by mastering one sin, will be very likely to win another. The spoils taken from the last Philistine will help us to go forth and win more, and in the name of God we shall get the victory. Perhaps there has been some other vice which he has cherished in secret and clung to with the more tenacity because it is so tenacious! Of that evil he has purged himself, and from that bondage he has escaped. Is it not possible that there yet remains one transgression which lurks in the breast of such a one? Very likely at this time he has a passionate temper. Down with it, my brother. You slew the lion, and you slew the bear, and this uncircumcised Philistine shall be as one of them. Do not be afraid to grapple with it. Do not say, “I have a quick temper, and I cannot help it.” There is no need for it. God’s grace can drive it out even as the rest. Beard it in the name of the Most High and use the trophies that you stole from past success-nay, fairly won them from the foes you have vanquished-use those with which to combat sins that now assail you. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0972.cfm

And to the captains over hundreds did the priest give king David’s spears and shields… – 2 Kings 11:10

Little could David have thought when he gave Abiathar the sword of Goliath, that he would ever go to the priests of Gad and ask them to lend him a sword, and that they should say, “We have no sword here, save the sword of Goliath, the Philistine, whom thou slewest in the Valley of Elah, behold it is wrapped in a cloth behind the ephod.” He gave it to God, but he did not think that he would ever have it back again with a priestly blessing on it, so that he should be able to say, “There is none like that: give it me.” And when, in after years, he hung up the swords and shields which he had taken away from Philistine heroes, he did not surmise that one of his descendants, or the seed royal, would find the need to employ his own, his grandsire’s, or, further back, from himself-his forefather’s trophies-in order to establish himself on the throne. We never know, my brethren, when we praise God for mercies, but what the very praises might come back into our bosoms, and the offerings we make to God in the way of thankfulness may be our own enrichment in the days to come.

Years ago, you and I were fighting battles with unbelief. We were struggling after a Savior. Our sins rose up against us thick and furious. The fiery darts of the enemy rained upon us like hail. Glory be to God! by His grace we won the victory and overcame through the blood of the Lamb. We looked at Jesus Christ upon the cross, and in that moment our sins fled away. The whole host of them was defeated. A dying Savior was the symbol of victory. Let us use the mementoes we laid up before the Lord of that day-the trophies that we took in that battle-for ourselves and for others. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0972.cfm

And the priest said, The sword of Goliath the Philistine, whom thou slewest in the valley of Elah, behold, it is here wrapped in a cloth behind the ephod… – 1 Samuel 21:9

David’s life was a series of dilemmas and deliverances. With what sort of face, think you, could he have invoked rescue from fresh perils, had he failed to recognise God’s help in past preservation? If, when flushed with victory, he had usurped the honor to himself, what assistance would he have received the next time he was curried with impending disaster? Or, had he not taught the Israelites in the hour of triumph to sing, “Not unto us, O Lord, not unto us, but unto Thy name give glory;” how could he have engaged their hearts in the hour of trial to wail forth the litany of supplication-“The Lord hear thee in the day of trouble; the name of the God of Jacob defend thee, send thee help from the sanctuary, and strengthen thee out of Zion.” Without consistency we cannot exert any moral influence with men or obtain any spiritual prevalence with God. May not many of our barren seasons be ascribed to the fact that we did not thank God for fruitful ones? “Give unto the Lord, O ye mighty, give unto the Lord glory and strength. Give unto the Lord the glory due unto His name;” else when most you need Him, you may find His strength is taken from you and your honors will have departed too. Hang up the shield, hang up the spear, let Jehovah’s name be exalted. Bring forth the forgotten memorials of lovingkindness, expose them to public view, put them before your own mind’s eye, gratefully remember them, lovingly praise Him and magnify His name…If we have any victories, let all the trophies be dedicated to the Lord. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0972.cfm