John Calvin Commentary 1 John 2:14

"I have written unto you, fathers, because ye know him who is from the beginning. I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the evil one." — 1 John 2:14 (ASV)

I have written unto you, fathers. I consider these repetitions unnecessary; and it is probable that when unskilled readers falsely thought that he spoke twice of little children, they hastily introduced the other two clauses. It might also be that John himself, to amplify, inserted the sentence concerning the young men a second time (for he adds that they were strong, which he had not said before); but that the copyists presumptuously completed the pattern.