Acts of the Apostles 1:23-26

So they nominated two men: Joseph called Barsabbas (also known as Justus) and Matthias. Then they all prayed, “O Lord, you know every heart. Show us which of these men you have chosen as an apostle to replace Judas in this ministry, for he has deserted us and gone where he belongs.” Then they cast lots, and Matthias was selected to become an apostle with the other eleven.