Why did Paul wrote you must drink but do not over drunk?? What is the context in that time??

The passage you are referring to is likely from the Bible, specifically Ephesians 5:18 which states, "Do not get drunk on wine, which leads to debauchery. Instead, be filled with the Spirit."

In the context of the time when this was written, excessive drinking was a common problem and often led to immoral behavior and a lack of self-control. Paul was advising the early Christians to avoid overindulgence in alcohol and to instead seek spiritual fulfillment and guidance from the Holy Spirit.

Overall, the message was to exercise moderation and self-control in all aspects of life, including drinking alcohol, in order to live a life that is pleasing to God.