# you, lady ... writing to you
These instances of "you" are singular. (See: [[rc://en/ta/man/jit/figs-you]])
# I were writing to you a new commandment, but one that we have had from the beginning
Here, "beginning" refers to "when we first believed." Alternate translation: "I were commanding you to do something new, but what Christ commanded us to do when we first believed" (See: [[rc://en/ta/man/jit/figs-explicit]])
# beginning—that we should love one another
This can be translated as a new sentence. Alternate translation: "beginning. He commanded that we should love one another"