Why do Christians trust YHWH?

[Cinjin]

Christians trust god for the same reason children trust parents(even if they are shitty parents).
They feel the one who knows more is automatically trustworthy even though he could turn out an omniscient scumbag.

Wait .... WHAT??

That doesn't even make sense. I don't know any children who think their parents are going to turn out to be omniscient scumbags.