I am sorry to say that humility isn't the first word that comes to mind when I behold my Christian brothers and sisters, or the second.
That isn't to say, of course, that there aren't any humble Christians.
It seems to me that the opinion Christians -and many other religious people- have of themselves is contradictory. On the one hand they have a rather negative opinion of themselves as they imagine that they have inherited a sinful nature which, unless remedied, will ensure an experience after death which is so unpleasant that it is best left unspecified. If this were the only opinion one has of oneself, a humble disposition would follow almost axiomatically. However, in addition to thinking of oneself as a wretched sinner, born deserving of Hell, these same people also imagine that the entire universe was constructed with them in mind and that the creator of such fashioned us lowly primates in His image.
This amounts to a maximum of servility coupled with a maximum of solipsism, which, I am sorry to say, doesn't strike me as psychologically healthy.
Sam