The Whole Armor of God - Ephesians 6:10-12New King James Version (NKJV)

10. Finally, my brethren, be strong in the Lord and in the power of His might. 11. Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 12. For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age,[a] against spiritual hosts of wickedness in the heavenly places.

Be Strong - Joshua 1:9 New King James Version (NKJV)

9. Have not I commanded you? Be strong and of good courage; do not be afraid, nor be dismayed, for the Lord your God is with you wherever you go.”