Nadab and Abihu would never have committed that fatal sin had they not first become partially intoxicated by the free use of wine.  By their intemperance they were disqualified for the holy office.  When intoxicants are used the conscience will lose  its sensibility to sin, and a process of hardening to iniquity will most certainly take place, making no distinction between the common and the sacred.

 Those who claim that Christ came to abrogate the law of God and to do away with the Old Testament think of the Jewish age as one of darkness, and speak of the religion of the Hebrews as consisting of mere forms and ceremonies.  But this is an error.  Christ was not only the leader of the Hebrews—the Angel in whom was the name of Jehovah—but it was He who gave the law to Israel.  Amid the awful glory of Sinai, Christ declared in the hearing of all the people the ten precepts of His Father’s law.  It was He who gave to Moses the law engraved on stone.

It is the voice of Christ that speaks to us through the Old Testament.

Jack Blanco, author of The Clear Word

with insights from Patriarchs and Prophets, pp. 359-366.