I think the reference you stated giving man one hundred and twenty years was the during the life of Moses and was referring to the life of a human being. Saying the human being is the flesh and the spirit wouldn't dwell inside the flesh forever. I don't think it was referring to the future Church.
And when you say "Yahweh God" are you saying God is the God of a certain nation? Or that your God is the same as the God that protected the Israelites? Because when I refer to God I think of him as more along the lines of the entire universe. Sorry for my ignorance, your just speaking out of my terms. I've read the text multiple times but I can't quote any scripture.
Perhaps I misunderstood the prior posts...I wasn't focused on life expectancy, rather that the bible agrees with what you said - the Holy Spirit will not strive with man for much longer, and once gone, man will no longer be under conviction so it will be pretty bad.
Yes, Yahweh (YHWH) is God's real name. 'god' can be or mean anything, but there is only one true God, and you are right, it is Jehovah, God of Israel - I AM THAT WHICH I AM.
Back on topic to the OP:
It may be worth mentioning as a side-note that if we are supposed to believe in God through faith, then reason is not the gift I thought it was. It is a curse and a mockery. As any chain is only as strong as its weakest link, so faith is only as valuable as it is supported by reason.
Rational reasoning is given to us, and we are expected to use it, but what Yahweh God wants is for us to walk in faith, and faith is often 'unrational'. Why does He want us to do it? Because it forces us to have a relationship with Him and stay close to Him. Because we get to stand back and watch Him do amazing things that we could never do in our own power. We are created for relationship with Him and we are created for one main purpose - to glorify Him, and we never glorify Him for what we can do ourselves.
As the strongest link in the chain is an irrelevant matter, so too is faith irrelevant as its only value is awarded by reason. For instance, a man drives off a cliff and may have faith that he will not die when he hits the ground. This faith would be weak and of little value, and in fact no man would have this faith, because he would analyze what he knows about blunt force trauma, and his faith would be near worthless, if faith can be said to have any value at all.
This is not faith - faith is not a shot in the dark - a hope or wish for something. If you are a christian, you pray, seek guidance, hear His answer, and do what He says to do even if things don't 'appear' to be the way they are supposed to be because you are depending on God to make it happen as you move forward. He will too.
My faith in a round earth is worth more.
Your belief is based on facts, not faith - simply believing what you see - that isn't difficult, and doesn't require reason. It was faith for Christopher Columbus though...ever study about his faith? He was opposed at every turn, people told him he was crazy, and laughed at him.
Faith is built over time, and incorrect faith can destroy real faith. The example you gave of faith to not die if you drive off a mountain is not faith. But an everyday/non religious example of faith is to ask yourself...do I check the stability of a chair before I sit in it? Why do you have faith that it will hold up when you sit down? If you have had one break under you, how many times did it take you before you were able to sit back with with 'faith' that it would hold you up? The point of faith isn't us, it is the object of our faith - and Yahweh God is stable, able, and WILL do what He says He will do - every time, no failures ever, and He does expect a Christian to walk in that faith.