What does Acts 6:3 mean?
Although the passage doesn't use the word, this is the establishment of the office of "deacon" in the church. Diakonia, the Greek root word from which "ministry" comes, specifically refers to the role of the deacons who collect and disperse resources (Acts 6:1–6); it is also used in the more general sense (Acts 20:24). It means to serve others by command of someone else. A small leadership staff cannot fill every need in a church. Forcing infinite responsibility on them is disrespectful to non-staff who have gifts of their own.Throughout the history of Christianity, God has used conflict to refine belief and understanding. Until this time, the Holy Spirit worked in the hearts of the Jesus-followers to take care of each other's practical needs (Acts 2:44–45; 4:32–37). There is nothing wrong with this system of management if the group is small and the members diligent and attentive. There are now thousands of Jesus-followers in Jerusalem, and the benevolent mob can't keep track of everyone.
The church leadership needs some structure. Not only are the apostles willing to hand over responsibility for managing money and assets, they're willing to let others choose the candidates who will do so. This delegation of duties is consistent with the Old Testament. Moses wisely agreed to place the Israelites under the command of a hierarchy of leaders (Exodus 18:19–23). And Nehemiah established quartermasters to make sure the Levites received their due (Nehemiah 13:13).
The leadership structure of the church is different than that in the Old Testament, however. God set aside the people of the tribe of Levi to serve Him. He designated that priests would come from the line of Aaron. The other Levite families had specific duties regarding the tabernacle (Numbers 3:21–37). Their tasks were based on what family they belonged to. In the church, however, leadership isn't based on family but character. First Timothy 3:8–13 lays out the qualifications for deacons, most of which deal with integrity. While deacons need to be spiritually mature, as any church leader, the apostles especially need to know they will handle the finances honestly and responsibly.
Acts 6:1–7 sees the early church in Jerusalem solve a problem caused by their rapid growth. The church is comprised of Jews from traditionally Jewish lands as well as nations to the east and Roman territories around the Mediterranean. As more people follow Jesus, those who are able donate to the apostles to care for those in need. Greek-speaking widows are less familiar to the local believers, and so they are not getting the same amount of support as those who speak Aramaic. Instead of taking on one more responsibility, the apostles commission seven men to manage the donations. One of these men is Stephen.
Acts 6 introduces us to a Jesus-follower named Stephen. The apostles affirmed the choice of Stephen, along with six others, to make sure every Christian in Jerusalem has what they need. But Stephen is also a skilled debater. As a Greek-speaking Jew from outside Judea, Jews from Cyrene, Alexandria, and modern-day Asia Minor would naturally gravitate toward him. These travelers cannot defeat Stephen's logic, but they reject his message. They falsely accuse Stephen and bring him before the Sanhedrin.