Here the word "we" refers to the writers of the letter [Acts 15:22](../15/22.md) but not its readers and so is exclusive. The word "you" is plural. (See: [[rc://en/ta/man/jit/figs-exclusive]] and [[rc://en/ta/man/jit/figs-you]])
This phrase emphasizes that Judas and Silas will say the same things that the apostles and elders had written. Alternate translation: "who themselves will tell you the same things about which we have written" (See: [[rc://en/ta/man/jit/figs-explicit]])