not always. G-d is beyond dry rationality. I am OK with it. Are you?:) And just because people can't always fully comprehend logic behind a G-d's law, it does not give them license to ignore that law.
not always.
Careful there. I think you mean that some truths that God wholly comprehends, like the Trinity, are beyond our ability to comprehend. These truths aren't irrational, but super-rational, at least with regard to our inferior intellects. But there is nothing contradictory in super-rational truths like the definition of the Trinity. It's just that the doctrine cannot be derived from reason alone, but only reason informed by faith.
G-d is beyond dry rationality.
God is beyond our ability to fully understand or comprehend, but His nature is rationality, since he is Truth Itself, as Scripture tells us.