1. Jesus called them one by one… Matthias: the prepared
Acts 1:14-26; Luke 10:1, 17

2. Peter the Leader
Jesus viewed him as leader (Matt 16:19; Luke 22:31-32; John 21:15-17)
He had the Holy Spirit (John 20:21-23; Luke 24:44-47)
Jesus talked about the Kingdom of God for 40 days (Acts 1:3)

3. Matthias
He fulfilled the 12 as “a witness to the Jews” (Luke 22:28-30; Rom 1:16; Acts 3:26; 13:46)
Among the "apostles" with God’s endorsement (Acts: 28 times; Acts 2:1-4)
Legitimate: casting or drawing lots (Prov 16:33; Luke 1:8-9; Acts 1:26)

4. Matthias Prepared, available, eager (cp. Isa 6:8)
Devoted to prayer and the Word (Acts 1:14; 6:2-4)