still small voice

The still small voice of self-approval whispers me it is not from me.

A flash of lightning and a crash of thunder may be seen and heard; it is the still small voice that leads the hero to success.

In the depth of his heart there was a still small voice which told him that, say what he might, he had acted cruelly.

He was listening to the still small voice that told him half of his purpose was accomplished.

They hear the blatant trumpeting of desire: not the still small voice of conscience.