The word "blasphemy" came via
Middle English blasfemen and
Old French blasfemer and
Late Latin blasphemare from
Greek βλασφημέω, from βλάπτω = "I injure" and φήμη = "reputation". From
blasphemare also came Old French
blasmer, from which English "
blame" came.
Blasphemy is irreverence
[1] toward holy personages, religious artifacts, customs, and beliefs.
Irreverent mean lacking the proper respect or seriousness.
Remember what the Pharisee's had done when Jesus warned them about blasheming the Holy Spirit. They had openly said that the works of the Spirit were from Satan when they KNEW it was not. They did not respect the Holy Spirit and they blamed the acts of the Spirit on Satan.
So, I think it's best if you don't make jokes about the Holy Spirit, don't disrespect the Holy Spirit, and you treat the Holy Spirit with seriousness. God know our hearts. He knows when we are purposely trying to be disrespectful and when we've made an honest mistake. He knows when we are trying to be wicked, and when we are hurt and lashing out. I honestly think it takes more than just a comment or a joke to do something unforgivable. Jesus was very upset that the works of the Holy Spirit were being credited to Satan and the Pharisees were saying it to just be poopoo heads. If the Holy Spirit is still inside you, I think you are still good to go. But living a life of disrespect will not be tolerated.