Let me say that this subject carries a lot of emotion and convictions. First of all, when asking “is OK to drink alcohol or to have a glass of wine” we must acknowledge that God’s Word does not strictly forbid it. Since I Corinthians 6:12 and 10:23 makes a distinction between what is lawful and what it expedient, the goal of the Christian life should be what is expedient, or as Philippians 1:9 says “That ye may approve things that are excellent….” Therefore, while some chose the liberty of having a glass of wine, many (like myself) would choose not to drink any alcohol.
I could understand taking alcohol as a medicine or in medicine. The verse that would forbid alcohol for the sake of getting intoxicated would apply to any form of getting high. Ephesians 5:18 says: “And be not drunk with wine, wherein is excess; but be filled with the Spirit.”
Drinking alcohol is not a sin. Drunkenness is a sin. However, a Believer should heed the warning of Proverbs 20:1 “Wine is a mocker, strong drink is raging: and whosoever is deceived thereby is not wise.” It is wise to stay away from it.
God would have us under the control of His Spirit at all times and never under the control of anything else including “self” or wine, alcohol, marijuana, or any mind altering drug. That’s the goal of the Christian life.