Matthew 24:25 See, I have told you beforehand.
How many times do you have to be told something before you start believing it? Chances are you will give a different answer for each person who asks.
Jesus had to tell the people a varying amount of times before they would start listening; the more they got to know Him the less they should have had to tell people.
Unfortunately, life does not always work like this. When we are attentive we listen. When we are tired we ignore things.
But when we trust we tend to short cut things and believe quicker. Is it therefore all about trusting God?