…take the sword of the Spirit, which is the word of God. – Ephesians 6:17

Oh, for a closer study of the Word of God! Are there not some of you who have never even heard or read all that the Lord has said? Are there not passages of the Bible which have never been read by you? It is a melancholy fact that there should be even a line of the sacred Scriptures which has never once come under your eye. Do read the Bible right through, from beginning to end. Begin tomorrow: nay, begin to-day, and go steadily through the whole of the sacred books, with prayer and meditation. Never let it be suspected by you that God has recorded truths in His Word which you have never even once read. Study the Word, and work out its meaning. Go deep into the spirit of inspiration. He gets most gold who digs the deepest in this mine.

Take the sword with the grip of sincere faith; hold it fast by a fuller knowledge, and then exercise yourself daily in its use. The sword is to be taken for earnest fight. You will not be long before occasion arises in such a world as this. You will have to parry with it, to pierce with it, to cut with it, and to kill with it… Behold, the world lieth in the wicked one! Errors abound, and colossal systems of falsehood still stand aloft. Men are still dragged down by the arch-deceiver. Surely, we feel our swords flying out of their sheaths when we think of the millions who are being ruined by sin and error. Oh, for a mighty onslaught upon the powers of darkness! ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2201.cfm