Children obey your Parents!

so I've been working on teaching the girls different Bible verses in different situations for them. Lately the verse has been Ephesians 6:1-3. " Children obey your parents for this is right. honor your Father and Mother, which is the first commandment with promise, that it may be well with you and you may live long on earth.
It was going well until today, when I tried to apply it to Emma when she was throwing a screaming fit today on the way home from therapy. she wanted me to carry her while walking through the hospital back to the car. I told her no because Mommy had to push Mady in the stroller and that would not work ( much less my back would of caved!).
Anyway, so we were in the car and I said to her that she needed to stop her fit and obey Mommy! I also quoted the verse.......she then panicked because she thought she was going to die because she wasn't obeying Mommy!! Then I had to explain that she would not die today because she disobeyed Mommy, but yet I went to far, and tried to explain that one day we are all going to die ( and the whole Heaven and Hell and you need Jesus thing) It went OK until I said that even Mommy and Daddy will die one day. They were more concerned that Daddy was going to die than Mommy! Oh what a day today! Lord help me not terrify my kids today!! Love my girls!!