I was thinking more of James 3:1 “Not many of you should become teachers, my brothers, for you know that we who teach will be judged with greater strictness.” (ESV)
No mention of alcohol there
General note on spiritual growth. (I’m not disagreeing with anybody here...just using this opportunity to make this observation) There should be no division of “clergy” and “laity” for the Christian as far as our own personal spiritual walk. Yes, those who teach and “pastor” have a greater responsibility because they have such influence over others. But every Christian should live his life, making every decision, every plan, and speaking every word, in the name of Jesus Christ. There should not be the notion that the preacher is in a different “more righteous” category...than us “regular folks”. As we behold Christ on the cross, we should all strive to say, as Paul did, “For me to live is Christ, and to die is gain.”