To read the texts click on the texts: Acts 13:13-25; Jn13:16-20
These verses contain the second part of the discourse spoken by Jesus after he washes the feet of his disciples. In the first part (13:12-15), Jesus teaches his disciples about the meaning of his washing their feet, and the implications that this action has for their lives as his disciples.
In the second part of this discourse (13:16-20), Jesus teaches about discipleship in general and the relationship that the disciples share with him. The double Amen at 13:16, and at 13:20, forms an inclusion and so brackets and highlights what Jesus says in between. The disciples must remember that their role, in their relationship with Jesus, is that of servants to their master. If they understand this and act on it, then they will be blessed. They must, at every stage, know where their authority ends. The sayings which are highlighted by the inclusion are in 13:18-19 and contain a prediction of betrayal. Jesus is aware of who the betrayer is and also knows that it is not an outsider, but one who has eaten at table with him. Ps 41:9 is quoted here to accentuate the intimacy of the betrayal. The betrayer is someone whose feet he has washed, one with whom he has broken bread and one whom Jesus has loved to the very end. This foreknowledge of the betrayer also means that Jesus is in control of the events that lead to his death and is not taken by surprise. Another reason for informing his disciples about his betrayal, in advance, is so that they may realize who Jesus is: Son of God. Even as he is betrayed, he will reveal himself as God for us.
Since Jesus has been sent by God, he has God’s stamp and authority. The disciples, who are in turn sent by Jesus, have the authority and stamp of Jesus. Thus, if anyone accepts the disciples, they are in effect accepting Jesus. Just as Jesus shares fully in God’s work, so the disciples share fully in Jesus’ work of giving life to all and giving it in abundance.