The sword of the Spirit is God's Word. It is a double edge sword that separates sinner from saint, conviction from contempt, sin from righteousness. It is your primary offensive weapon in spiritual warfare. God's Word is where you find the truth. It exposes your true heart and soul. It holds you accountable to God.
When you are going through a trial, then it is God's Word that shows you the way. When Satan is feeding you lies it is God's Word that gives you the truth. Pray faithfully and you will find what you are looking for in the Bible.
God's Word has the power to give your soul life. It gives you the power to stand firm in your faith and defend what you believe. It cuts, but it is a clean cut. The cuts are meant to reveal truth not kill. It is better to have scars than to loose your soul. Use God's Word to honor His name. Do not use God's Word to be the winner of every battle because that is pride not faith.
When you are being tempted you are able to use the scripture you have learned to send Satan away. The Bible empowers you to have what you need to avoid, flee, or escape sin. God will open ways that did not exist to protect you. Satan knows scripture too, but he twist and manipulates it to serve His purpose. You have to learn it in context and to know God better. The closer you get to God the more it makes sense.
If you are a Christian, then your body is the temple that the Holy Spirit lives within. You use the Bible to keep yourself holy. The Bible is a weapon, guide, boundary setter, and love letter. It gives you what you need when you need it as long as you trust the Holy Spirit.
When you use the sword use it in prayer. The Holy Spirit will guide your words, but never speak without praying over it first. Be persistent and alert to know how best pray and use the sword. Be humble and confident in your use of God's Word. Be self-disciplined enough to use God's Word to do good. Do not abuse the power that God has provided you or you will pay the price.
Isaiah 55:10-13, Matthew 4:1-11, 1 Corinthians 3:16-17, 6:15-17, Ephesians 6:13-18, 2 Timothy 1:5-7, 3:14-17, Hebrews 4:12-13