Why Did the Blasphemer Blaspheme?
פרשת אמור / י”א באייר תשפ”ב – כ”ו בעומר
The reason given that the man blasphemed was that he got into a fight with another Jew over a Jewish legal issue. They took the case to Moses’s court. Moses gave the ruling that he was wrong. He could not accept the verdict. That is why he went out and blasphemed God.