Christ reconstitutes the apostleship

Just days after Christ's ascension and before Pentecost, Peter stood up in the midst of the assembly of disciples and called for change. With the apostasy and suicide of Judas, the twelve had been reduced to the eleven and thus the apostleship was disfigured. Calvin explains that this deficiency had it not been addressed would have led to the gospel being dishonored before the world. In response to Peter's admonition, the disciples nominated two men as a replacement and then cried out to Jesus to remedy the situation by disclosing his choice. The end result is that Christ directed the lot toward Matthias and reconstituted the apostleship.