“I believe every word of the Bible. “
Should those who curse their mothers and fathers be killed?
http://www.biblestudytools.com/kjv/matthew/passage/?q=matthew+15:3-4
Yes those people deserve to die but fortunately for us, Jesus declares us innocent as he has taken our sins upon himself. That is for those who accept his gift.
Even for those who commit these sins, and Jesus forgives, Jesus does not say it is OK, he says to sin no more.