Romans chapter 8 verse 22.
Last night I had to have a talk with my tenderhearted, animal loving daughter about that verse and her current perspective. Our cats have been clearing the house of mice fairly effectively and last night they caught another one. This time though Rene intercepted the cat and took the still breathing mouse and almost lost it. The poor little guy was missing a tail and had several puncture wounds and was just laying there breathing in her hand when she came weeping to me. I took the mouse and disposed of it and made her wash her hands but had trouble getting her to calm down. I guess her real issue wasn't that the mouse would die, but that it was suffering... I decided not to mention to her that had she not taken it from the cat, it would likely be dead by now and that she probably extended its pain by 'rescuing' it. I waited until this morning to have the Lion King talk with her about how animals eat other animals and that is just the way it is, however I left out the circle of life BS and explained how the world is under the curse of Sin (using Rom 8:22 as my primary verse) and until Christ comes back this problem will persist and she needs to find a way to cope with it. She took it well and hopefully the next time we find a mouse it will not be 'mostly' dead but fully expired.
Oh and I found the tail... it was right next to the coffee machine on the counter. I should have named the tabby Vito Corleone! Actually since I am the one who put the hit out on the mice, I am the godfather.