Command to redirect messages to Discord

Anyone knows if is possible to create a command where a person can type a message/code and that specific message is redirected to Discord one of the channels that have been given permission to receive any of those messages? I do Mario Maker streams and a lot of people add their Course Codes what I sometimes lose track and having a command that people use and add their codes while on the stream would be awesome. If anyone knows any, please let me know. Thank you