Hi Deb, drinking a glass of wine at dinner is not a sin – in fact it has medical advantages. Drunkiness is a sin.
Ephesians 5:18
Do not get drunk on wine, which leads to debauchery. Instead, be filled with the Spirit.
This text above does not say do not drink wine. It says don’t get drunk on wine.
1 Timothy 5:23
Stop drinking only water, and use a little wine because of your stomach and your frequent illnesses.
This verse above does not justify getting drunk. It tells tim to use wine for medical purposes.
I Cor 11
20When you come together, it is not the Lord’s Supper you eat. 21As you eat, each of you goes ahead without waiting for anyone else. One remains hungry and another gets drunk. 22Don’t you have homes to eat and drink in? Or do you think so little of God’s church that you shame those in it who have nothing? What should I say to you? Should I praise you for that? Certainly not!
How does one get drunk on grape juice?
Matthew 9:17
Neither do men pour new wine into old wineskins. If they do, the skins will burst, the wine will run out and the wineskins will be ruined. No, they pour new wine into new wineskins, and both are preserved."
Matthew 21:33
The Parable of the Tenants ] "Listen to another parable: There was a landowner who planted a vineyard. He put a wall around it, dug a winepress in it and built a watchtower. Then he rented the vineyard to some farmers and went away on a journey.
Luke 5:38
No, new wine must be poured into new wineskins.
Luke 5:39
And no one after drinking old wine wants the new, for he says, ‘The old is better.’ "
Luke 7:33
For John the Baptist came neither eating bread nor drinking wine, and you say, ‘He has a demon.’
John 2:1
Jesus Changes Water to Wine ] On the third day a wedding took place at Cana in Galilee. Jesus’ mother was there, When the wine was gone, Jesus’ mother said to him, “They have no more wine.”
John 2:9
They did so, and the master of the banquet tasted the water that had been turned into wine. He did not realize where it had come from, though the servants who had drawn the water knew. Then he called the bridegroom aside 10 and said, “Everyone brings out the choice wine first and then the cheaper wine after the guests have had too much to drink; but you have saved the best till now.”
John 4:46
Once more he visited Cana in Galilee, where he had turned the water into wine. And there was a certain royal official whose son lay sick at Capernaum.
Romans 14:21
It is better not to eat meat or drink wine or to do anything else that will cause your brother to fall.
The do not drink wine in protestant circles is a hangover from prohibition and from the holiness movement.
Also, John 6
The four cups are from Mishna Pesachim 10:1. It is a rabbinical decree , based on the four expressions of redemption in Exodus 6:6-7 - (source: Talmud Yerushalmi 10:1).
Apparently, it was instituted in the time of the Great Assembly (“Anshei Knesset HaGedolah”), whose period extended from Ezra to the beginning of the Tannaic era.
With blessings from Jerusalem,
judaism.about.com/library/3_askrabbi_o/bl_simmons_passover_4cups.htm