What does Acts 2:44 mean?

This passage describes the early church in Jerusalem, especially before persecution by the Jewish leaders (Acts 8:1). The church started one morning with 120 members (Acts 1:15; 2:1–4). By that evening, they had about three thousand (Acts 2:41). And more and more were being saved every day (Acts 2:47). Many of these people had come to Jerusalem for Pentecost—they don't live here, they have no home or business opportunities (Acts 2:9–11). But this is a crucial time in the church. God gave Moses the Law before the Israelites entered the Promised Land. In a similar way, the new Jesus-followers need to understand the basics before they return home or are driven out by persecution (Acts 8:1). So they stay and learn, and the Jesus-followers native to Jerusalem and Judea accommodate them with what they have (Acts 2:45).

The New Testament says quite a bit about giving to Jesus-followers in need. Jesus says that wealth accumulated in this world means nothing compared to treasures in heaven (Matthew 6:19–21). John points out that withholding support from a brother in need is the opposite of love (1 John 3:17). James warns against giving lip-service to others' needs without practically acting to meet the needs (James 2:15–16). And Paul points out that any giving we do is voluntary and should be done cheerfully (2 Corinthians 9:7). That's easier to do when we remember those in need are our friends and brothers and sisters in Christ.