Ephesian 6:10-11

10 Finally, my brethren, be strong in the Lord, and in the power of his might.

11 Put on the whole armour of God, that ye may be able to stand against the wiles of the devil.

2 Corinthians 10:4-6

12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places

Isaiah 40:31

31 But they that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.