Well, were can you start? First of all, God is almighty. There is no power, substance or being that is more powerful than he is. I never get an argument from this assertion for it is ultra-scriptual, but often we humans in our finite understanding cannot grasp what it means to be "almighty." Most often in assertions I have heard or read there is subconscious assumption that God exists in time. I do it myself quite often because I exist in time. There is a yesterday, today, and hopefully a tomorrow. I was, I am, and I will be. God, though, does not share this nature with me. God is an "am".

"And God said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of Israel, I AM sent me unto you." Exodus 3:14

For if God exists in time then he cannot be almighty for time would be more powerful than he would. God can work in time, the first chapter of Genesis testifies to this, but God does not exist in time. Rather, time exists in God.

"I am Alpha and Omega, the beginning and the ending, saith the lord, which is, and which was, and which is to come, the Almighty." Revelation 1:8

St. Peter puts it.

"But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day." II Peter 3:8.

Jesus put it

"Verily, verily, I say unto you, Before Abraham was, I am." John 8:58.

Consider this concept. God is God of the past, right now; God is God of the future, right now. (Maybe this is why all his prophecies come true)

And so you can see that since God does not live in time, he does not change.

Psalm 102:25-27 "Of old hast thou laid the foundation of the earth: and the heavens are the work of thy hands. They shall perish, but thou shalt endure: yea, all of them shall wax old like a garment; as a vesture shalt thou change them, and they shall be changed: But thou art the same, and thy years shall have no end." (This is quoted again in Hebrews 1:10-12.)

Malachi 3:6 "For I am the LORD, I change not; therefore ye sons of Jacob are not consumed."

James 1:17 "Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning."

Hebrews 1:17 " Jesus Christ the same yesterday, and today, and for ever."

So we must see that God will be consistent in his nature whatever that nature may be. And any scripture that attests to his nature, whether in the Old or New Testament, will be true today as well as yesterday and even tomorrow.

To return to the concept of almighty, God is all-knowing, all-seeing, omnipresent, infinite, the ultimate of ultimate, and compared to him I am an invisible dot, on an invisible dot, on an invisible dot... So please be aware of your temporal existence and his eternal existence when you are contemplating God.