Here's a few Scriptures (in the N. A. S. B. version) which teach us something about God's ability.
"If it be so, our God whom we serve is able to deliver us from the furnace of blazing fire; and He will deliver us out of your hand, O king." Daniel 3:17
"Now I, Nebuchadnezzar, praise, exalt and honor the King of heaven, for all His works are true and His ways just, and He is able to humble those who walk in pride.” Daniel 4:37
"and do not suppose that you can say to yourselves, ‘We have Abraham for our father’; for I say to you that from these stones God is able to raise up children to Abraham." Matthew 3:9 (repeated in Luke 3:8)
"When He entered the house, the blind men came up to Him, and Jesus said to them, “Do you believe that I am able to do this?” They said to Him, “Yes, Lord.” Then He touched their eyes, saying, “It shall be done to you according to your faith.” And their eyes were opened. " Matthew 9:28-30
" Do not fear those who kill the body but are unable to kill the soul; but rather fear Him who is able to destroy both soul and body in hell. " Matthew 10:28
" And now I commend you to God and to the word of His grace, which is able to build you up and to give you the inheritance among all those who are sanctified. " Acts 20:32
" and being fully assured that what God had promised, He was able also to perform." Romans 4:21
"And they also, if they do not continue in their unbelief, will be grafted in, for God is able to graft them in again." Romans 11:23
"Who are you to judge the servant of another? To his own master he stands or falls; and he will stand, for the Lord is able to make him stand." Romans 14:4
"Now to Him who is able to establish you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery which has been kept secret for long ages past," Romans 16:25
"And God is able to make all grace abound to you, so that always having all sufficiency in everything, you may have an abundance for every good deed;" 2 Corinthians 9:8
"Now to Him who is able to do far more abundantly beyond all that we ask or think, according to the power that works within us," Ephesians 3:20
"For this reason I also suffer these things, but I am not ashamed; for I know whom I have believed and I am convinced that He is able to guard what I have entrusted to Him until that day." 2 Timothy 1:12
"For since He Himself was tempted in that which He has suffered, He is able to come to the aid of those who are tempted." Hebrews 2:18
"For the word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart." Hebrews 4:12
"In the days of His flesh, He offered up both prayers and supplications with loud crying and tears to the One able to save Him from death, and He was heard because of His piety." Hebrews 5:7
"Therefore He is able also to save forever those who draw near to God through Him, since He always lives to make intercession for them." Hebrews 7:25
"He considered that God is able to raise people even from the dead, from which he also received him back as a type." Hebrews 11:19
"Therefore, putting aside all filthiness and all that remains of wickedness, in humility receive the word implanted, which is able to save your souls." James 1:21
"There is only one Lawgiver and Judge, the One who is able to save and to destroy; but who are you who judge your neighbor?" James 4:12
"Now to Him who is able to keep you from stumbling, and to make you stand in the presence of His glory blameless with great joy," Jude v 24
I find this so encouraging when I think of the things I'm not able to do. When we reach the end of our abilities, the God who created all things is well able to do far more than we remember or realise.