Because

Tyson: Mommy, I want to go outside and play.
Me: Baby, we can't go outside because it's raining.
Tyson: Why mommy?
Me: Because it's raining and it's cold outside.
Tyson: But why is it raining?
Me: Because God wanted it to rain today.
Tyson: But why did God want it to rain?
Me: Because God knows that we need rain.
Tyson: But why did God make it rain?
Me: Because he wants the grass to get one more drink of water before winter.
Tyson: But why does the grass need more water?
Me: I'm not sure.
Tyson: So why did God give it more water?
Me: Because God knows more than mommy.
Tyson: Does God know more than Daddy?
Me: Yup. God knows everything.
Tyson: He knows more than daddy? Wow.
Me: I know, pretty fun huh?
Tyson: Does God know about cars?
Me: Uh huh.
Tyson: Wow.