It is not written that the Earth is 5 billion years old. The bible gived the Chronology of creation from Adam to Jesus and Adam was created on the 6th day of creation. 5 days after the 1st day.
"It is not written that the Earth is 5 billion years old."
That is correct we are not given the AGE of this earth, yet we are told it is ancient and very old.
"The bible gived the Chronology of creation from Adam to Jesus and Adam was created on the 6th day of creation. 5 days after the 1st day."
We are told about "GENERATIONS" before The Adam was ever created.
Then after The Adam was created we are given his generations. NOT ONE WORD IS GIVEN about the age of the earth. Now why didn't Noah save any of these creatures???? Why, they were not here to be saved.