“And so I tell you, every kind of sin and slander can be forgiven, but blasphemy against the Spirit will not be forgiven. Anyone who speaks a word against the Son of Man will be forgiven, but anyone who speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.” — Jesus Christ
The Son of Man made it clear He and the Holy Spirit are truly distinct beings by pointing out the absolute distinction between blaspheming Himself and blaspheming the Holy Spirit. If they were one deity together and one being and one substance then blaspheming Him would actually be blaspheming the Holy Spirit too. But it isn’t. So they’re not the same single being and deity. Ref Matthew 12:31-33.
