Hey Txroads
Some folks may think that this equals Replacement Theology. I don't believe that's what you meant.
I do agree that we have times of greater faith than at other times. And yet we know that God is the same yesterday, today and forever. So, obviously, we are the ones that change. Or our level of faith does.
Why do we change this way? I believe that we fail to take the time to sit down and consider all the many blessings (count them, one by one!) that God has already done for us in the past. If He did that for us then, then why would He not do so now?
I'm just thankful that he was not touched in the ribs!