No one can keep the commandments for their salvation. Once we are saved Christ and the Holy Spirit change our hearts and we want to follow Him and please Him. But we still sin and no one can keep the commandments flawlessly to earn their salvation. That is the difference. We want to keep His commands as a response to our salvation not in hopes of earning it
Even murders and suicides are forgiven? I know most consider suicide, murder of self. I have a good friend who did that, was a believer but I don’t know his heart as I had not seen him in years.
That is the hardest, to not be settled on this point with him, or frankly for those who kill themselves with drugs.