1 Timothy 6:12 KJV

Fight the good fight of faith, lay hold on eternal life, whereunto thou art also called, and hast professed a good profession before many witnesses.

Ephesians 6: 10 - 11

Finally, my brethren, be strong in the Lord, and in the power of his might.  Put on the whole armour of God, that ye may be able to stand against the wiles of the devil.