For this reason, the shield was both a defensive tool and an offensive weapon.
The shield of faith has a very specific function, which the Bible makes abundantly clear: quench all the fiery darts of the wicked one. Not some of them but all of them.
In the book of Psalms, David compared the protection of the Lord to a shield.
Our shield is God and faith is what the Holy Spirit dropped into our hearts when we received the Lord Jesus Christ as our Saviour. Faith is what allows us to call God our Father.
Hebrews 11:1 “Now faith is confidence in what we hope for and assurance about what we do not see.”
Each of us will face difficult situations and temptations of the enemy at one time or another. Satan can cause us to doubt God and by succeeding, gain temporary victory over our lives. Faith prompts us to believe in God.
I John 5:4 “For everyone born of God overcomes the world. This is the victory that has overcome the world, even our faith.”
What does wearing the shield of faith then means?
Your faith will grow stronger as you read God’s Word and see how He has sustained believers in every imaginable kind of difficulty.
Taking up your shield of faith implies that we are not in the fight alone.
2 Chronicles 20:20 “Have faith in the Lord your God and you will be upheld; have faith in his prophets and you will be successful.”
"And without faith it is impossible to please
God, because anyone who comes to Him must believe that He exists and that He
rewards those who earnestly seek Him."