Macedonia refers to the northern region of the Greek peninsula. It is similar to the present-day region of North Macedonia.
It was the first region where Apostle Paul carried out missionary work in Europe.
Paul intended to do missionary work in Asia, but the Holy Spirit prevented him. He then saw a vision of Macedonian people and began his European mission starting from this region.
Acts 16:6When the Holy Spirit had forbidden them to speak the word in Asia, they went through the region of Phrygia and Galatia.Acts 16:7When they came to Mysia, they tried to go into Bithynia, but the Spirit of Jesus did not allow them.Acts 16:8So, passing by Mysia, they went down to Troas.Acts 16:9And a vision appeared to Paul in the night: a man of Macedonia was standing there, urging him and saying, “Come over to Macedonia and help us.”Acts 16:10And when Paul had seen the vision, immediately we sought to go on into Macedonia, concluding that God had called us to preach the gospel to them.
The saints in this region contributed money for the saints of the Jerusalem church.
Rom 15:26For Macedonia and Achaia have been pleased to make some contribution for the poor among the saints at Jerusalem.
2 Cor 8:1We want you to know, brothers, about the grace of God that has been given among the churches of Macedonia,2 Cor 8:2for in a severe test of affliction, their abundance of joy and their extreme poverty have overflowed in a wealth of generosity on their part.2 Cor 8:3For they gave according to their means, as I can testify, and beyond their means, of their own accord,2 Cor 8:4begging us earnestly for the favor of taking part in the relief of the saints—2 Cor 8:5and this, not as we expected, but they gave themselves first to the Lord and then by the will of God to us.
They also contributed for Paul's ministry.
Phil 4:15And you Philippians yourselves know that in the beginning of the gospel, when I left Macedonia, no church entered into partnership with me in giving and receiving, except you only.
Silas and Timothy came down from here.