The Word of Wisdom Applies to All Wickedness
President Ezra Taft Benson

When we first heard the revelation upon the Word of Wisdom many of us thought it consisted merely in our drinking tea and coffee, but it is not only using tea and coffee and our tobacco and whisky, but it is every other evil which is calculated to contaminate this people. The Word of Wisdom implies to cease from adultery, to cease from all manner of excesses, and from all kinds of wickedness and abomination that are common amongst this generation--it is, strictly speaking, keeping the commandments of God, and living by every word that proceedeth from His mouth.

(President Ezra Taft Benson, JD 2:358)

Section 89

Doctrine & Covenants