(Original post by Christianlady)
Well, first of all, the Tanakh was given by God to the children of Israel (Jacob) son of Isaac son of Abraham. Christians (whether Jewish or Gentile followers of Jesus) did not exist in that time, because Christians = followers of the Christ = Messiah = Anointed One who God promised would be on the throne of King David forever (2 Samuel 7, 1 Chronicles 17, Psalm 2, Psalm 89)
The first Christians (followers of Jesus Christ) were Jewish people, including his 12 apostles. They did follow the law that God gave to Moses for the children of Israel. Jesus and his apostles were children of Israel.
Now, the Tanakh does not forbid alcohol. It does advise against becoming drunk. Jesus, by the way, turned water into wine (John 2:1-12). So, the issue for the children of Israel was not so much drinking alcohol, but rather the act of getting drunk, by drinking too much alcohol.
About pork, the dietary law that God gave to the Israelites was not specifically passed on to Gentile believers in Jesus. Rather, the apostles of Jesus wrote the following to Gentile believers in Jesus:
(I boldened some.)
"22 Then the apostles and elders, with the whole church, decided to choose some of their own men and send them to Antioch with Paul and Barnabas. They chose Judas (called Barsabbas) and Silas, men who were leaders among the believers. 23 With them they sent the following letter:
The apostles and elders, your brothers,
To the Gentile believers in Antioch, Syria and Cilicia:
24 We have heard that some went out from us without our authorization and disturbed you, troubling your minds by what they said. 25 So we all agreed to choose some men and send them to you with our dear friends Barnabas and Paul— 26 men who have risked their lives for the name of our Lord Jesus Christ. 27 Therefore we are sending Judas and Silas to confirm by word of mouth what we are writing. 28 It seemed good to the Holy Spirit and to us not to burden you with anything beyond the following requirements: 29 You are to abstain from food sacrificed to idols, from blood, from the meat of strangled animals and from sexual immorality. You will do well to avoid these things.
30 So the men were sent off and went down to Antioch, where they gathered the church together and delivered the letter."
So, it is important to note that Gentiles who became followers of the Jewish Jesus (since Jesus is Jewish) did not have to become Jewish and circumcise the boys or follow all the Law that God gave to the children of Israel through Moses. Rather, they were encouraged to "abstain from food sacrificed to idols, from blood, from the meat of strangled animals and from sexual immorality."
Peace and God bless you