She was as sure of the man he was going to be as she was sure of the mercy of God.

That is the strongest way I know to tell it.

She was unshakably sure of the mercy of God, but I wasn't.

There were times when it seemed as if He couldn't hear the most powerful prayer you could pray, and when instead of mercy, you seemed to get the last torment that could be piled on.
Take right now.

Laddie was happy, and all of us were, in a way; and in another we were almost stiff with misery.
I dreaded his leaving us so, I would slip to the hawk oak and cry myself sick, more than once; whether any of the others were that big babies I don't know; but anyway, THEY were not his Little Sister.