I dont know your mom's heart, so I dont know if it would affect her or not, but my mind seems to remember something you said about your mom and dad and how they viewed christianity very poorly. She doesnt sound like a likely candidate for being impressed by truths found in scripture. But we are talking about someone of whom you probably dearly hope to come to a knowledge of Christ and accepting His gift of life... hope is a powerful thing, so is love. Very powerful, I guess it will depend a lot on your state of mind, you mom can probably see through any deception you might have had in the past, if she sees that in you when you bring it to her attention.... even if its only being nervous, she might think, you are only nagging her in return or seeking a verbal retribution. You would have to pray and fast about the future incident. Get your heart in the right place, loving your mom as the reason, not to make your life with her better, it cant be about you. And just showing the scripture by itself would a negative... dont nag me.... scripture tells us to focus on the good, not the negative. Find a way, do a food fast and pray about it, then when you are ready, take action. The Holy Spirit will help you if you sincerely ask.