He that despised Moses' law died without mercy under two or three witnesses:
Despised, х atheteesas (G114)] - utterly and heinously set aside, not merely in minor detail, but the whole law, as by idolatry (Deuteronomy 17:2-7). So apostasy answers to such utter violation of the old covenant. Compare Hebrews 2:2-3; Hebrews 12:25.
Died, х apothneeskei (G599)] - 'dies:' the normal punishment then still in force.
Without mercy, х oiktirmoon (G3628)] - mercies: removed out of the pale of mitigation or respite.
Under - on the evidence of.