According to theologians,and Bible sholars.The verse about blasphemy of the HOLY Spirit was a sin that could only be done at time when JESUS was on Earth,in person.The Pharasees said in Jesus presence that He could do miracles because Satan was giving Him 'POWERS'to do it.This was BLASPHEMY of the Holy Spirit.The Holy Spirit was inside Jesus,and gave Him power to perform miracles,and was His source of power.I have also read Biblical write that blasphemy of Holy Spirit also can relate to rejecting the Holy Spirit.Which is needed,in order for your soul to be savedThe HOLY SPIRIT.,actually is the one who purifies your soul in this life time.After you ask God to SAVE your soul