Sharpening the Warrior's Sword

Proverbs 27:17: Iron is sharpened by iron, And a man sharpens the face of his friend.

For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart. (Hebrews 4:12 ESV)

All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work. (‭2 Timothy‬ ‭3‬:‭16-17‬ ESV)

Romans 12 NIV Therefore, I urge you, brothers and sisters, in view of God’s mercy, to offer your bodies as a living sacrifice, holy and pleasing to God—this is your true and proper worship. Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing and perfect will. For by the grace given me I say to every one of you: Do not think of yourself more highly than you ought, but… 

URL: https://www.biblegateway.com/passage/?search=Romans%2012&version=NIV

Isaiah 43 NIV But now, this is what the Lord says— he who created you, Jacob, he who formed you, Israel: “Do not fear, for I have redeemed you; I have summoned you by name; you are mine. When you pass through the waters, I will be with you; and when you pass through the rivers, they will not sweep over you. When you walk through the fire, you will not be burned; the flames will not set you ablaze. For I am the Lord your God, the Holy One of Israel, your Savior; I give Egypt for your ransom,…

URL:https://www.biblegateway.com/passage/?search=Isaiah%2043&version=NIV