After Pip arrives in London to begin his training to be a gentleman, he finds that his roommate is none other than the "pale young gentleman" of his first visit to Satis House. Then, he is informed that Herbert Pocket's father, Matthew Pocket, of whom Pip has heard Miss Havisham and her relatives speak, is to be his tutor. Mr. Pocket's duties are to be a general tutor as he is a distinguished graduate of Cambridge. Then, in the beginning of Chapter XXIV, Pip narrates,
AFTER TWO OR three days, when I had established myself in my room and had gone backwards and forwards to London several times, and had ordered all I wanted of my tradesmen, Mr. Pocket and I had a long talk together. He knew more of my intended career than I knew myself, for he referred to his having been told by Mr. Jaggers that I was not designed for any profession, and that I should be well enough educated for my destiny if I could “hold my own” with the average of young men in prosperous circumstances. I acquiesced, of course, knowing nothing to the contrary.
While Pip learns his lessons from Matthew Pocket, he learns also that Mr. Pocket is a man who exemplifies a veritable gentleman, kind, congenial, considerate, albeit rather frustrated with his wife and unruly children.