Biblical Truths :: Examining the errancy of the bible

God promises that peace shall come to his people beginning with the messiah's first appearance on earth:
"For the mountains may depart and the hills disappear, but my kindness shall not leave you. My promise of peace for you will never be broken, says the lord who has mercy upon you"
- Isa 54:10

Okay, now if this god person really said this;

God says he will never "smite any more every thing living, as I have"
[by flood]
- Gen 8:21

Yet, if the prophesies toward the end of the book are true, god will indeed smite "the nations" again as he did before.
However, to be fair, this time it'll be by fire
-maybe that's OK. But then why bother making the first promise? Do the smote really care whether it's by fire or water?
- Rev 19:15, 2 Peter 3:l0

And he'll even allow the survivors of the first wave to eat the bodies of the victims before they too are slain.

God promises that if his people "pray and seek my face, then will I hear from heaven, and will forgive their sin, and will heal their land."
- 2 Chron 7:14

However, saul inquired of god many times, but god did not answer him

God promises abraham the land of Canaan to live in
- Gen 17:8

God did not allow abraham to live in the promised land