The condition Peter gave for a person that would replace Judas Iscariot was that he must be

According to the Bible (Acts 1:21-22), the condition that Peter gave for a person who would replace Judas Iscariot as a disciple of Jesus was that he must have been a witness to Jesus' ministry from the time of his baptism by John until his ascension. This means that the person must have been present with Jesus throughout his public ministry and had personally witnessed his teachings, miracles, death, and resurrection. Additionally, the person must have been someone who had full faith in Jesus as the Messiah and was willing to follow him even in the face of persecution and hardship. Peter did not specify any requirements related to being a Galilean or a disciple of John the Baptist, as these conditions are not mentioned in Acts 1:21-22.