"And let us not be weary in well doing: for in due season we shall reap, if we faint not." - Galatians 6:9 KJV

"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." - Ephesians 6:12 KJV

"And Jesus answering saith unto them, Have faith in God." - Mark 11:22 KJV

"Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;" - Ephesians 6:18 KJV

"And all things, whatsoever ye shall ask in prayer, believing, ye shall receive." - Matthew 21:22 KJV

"And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us: and if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him." - 1 John 5:14-15 KJV

"I can do all things through Christ which strengtheneth me." - Philippians 4:13 KJV

"Wherefore also we pray always for you, that our God would count you worthy of this calling, and fulfil all the good pleasure of his goodness, and the work of faith with power: that the name of our Lord Jesus Christ may be glorified in you, and ye in him, according to the grace of our God and the Lord Jesus Christ." - 2 Thessalonians 1:11-12 KJV

Another translation:

"So we keep on praying for you, asking our God to enable you to live a life worthy of his call. May he give you the power to accomplish all the good things your faith prompts you to do. Then the name of our Lord Jesus will be honored because of the way you live, and you will be honored along with him. This is all made possible because of the grace of our God and Lord, Jesus Christ." - 2 Thessalonians 1:11-12 NLT