"I was then carried back to the days of the apostles and saw that God chose as companions an ardent, zealous Peter and a mild, patient John. Sometimes Peter was impetuous, and often when this was the case the beloved disciple would check him. This, however, did not reform him. But after he had denied his Lord, repented, and been converted, all he needed to check his ardor and zeal was a mild caution from John. The cause of Christ would often have suffered had it been left to John alone. Peter's zeal was needed. His boldness and energy often delivered them from difficulty and silenced their enemies. John was winning. He gained many to the cause of Christ by his patient forbearance and deep devotedness. EW 224.2"
"Now the names of the twelve apostles are these; The first, Simon, who is called Peter, and Andrew his brother; James the son of Zebedee, and John his brother;"
The EGW passage elaborates on the contrasting personalities of Peter and John, which is consistent with their portrayal in the Gospels, even though Matthew 10:2 only lists their names. The passage amplifies the known characteristics of these apostles.