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