What is the unpardonable sin.... for today?

People ask what is the unpardonable sin and yet the better question to ask is what is the unpardonable sin today. Break this study up into multiple parts if you have too Brethren. I pray that you watch it in its entirety.

1 John 1:9 If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.