Messengers from John the Baptist
In the New Testament this episode takes place after the Baptism of Jesus when John the Baptist is in prison and hears of the works performed by Jesus. John sends two of his disciples as messengers to ask a question from Jesus: "Are you the one to come after me or shall we wait for another?" 
According to the Gospel of Matthew:
When John heard in prison what Christ was doing, he sent his disciples to ask him, "Are you the one who was to come, or should we expect someone else?" Jesus replied, "Go back and report to John what you hear and see: The blind receive sight, the lame walk, those who have leprosy are cured, the deaf hear, the dead are raised, and the good news is preached to the poor. Blessed is the man who does not fall away on account of me."
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