As time passes from the point of the bang, things are supposed to start out small then get bigger. When the James Webb Telescope looked back in time they found galaxies 100 times bigger than our own when things should be still small aka no big expansion yet. Proving the amount of time required for this to happen, if the Big Bang were true, was not needed.
That God had expanded everything in one day:
“I have made the earth, and created man upon it: I, even my hands, have stretched out the heavens, and all their host have I commanded.” Isaiah 45:12 KJV
“Thus saith God the LORD, he that created the heavens, and stretched them out; he that spread forth the earth, and that which cometh out of it; he that giveth breath unto the people upon it, and spirit to them that walk therein:” Isaiah 42:5 KJV
“He hath made the earth by his power, he hath established the world by his wisdom, and hath stretched out the heavens by his discretion.” Jeremiah 10:12 KJV