Now, little children, remain in him, that when he appears, we may have boldness, and not be ashamed before him at his coming.

 This is an approach which Paul continually uses. He writes to the Thessalonians: "But concerning love of the brethren you have no need to have any one write to you, for you yourselves have been taught by God to love one another" ( 1 Thessalonians 4:9). What they need is not new truth but to put into practice the truth they already know. He writes to the Romans: "I myself, am satisfied about you, my brethren, that you yourselves are full of goodness, filled with all knowledge, and able to instruct one another. But on some points I have written to you very boldly by way of reminder, because of the grace given me by God" ( Romans 15:14-15). What they need is not so much to be taught as to be reminded. 