All of the messengers and prophets taught submission to God, the One and Only True God (Allah) who is my God and your God whether choose to accept or reject Him. The ultimate message they brought has remained the same "worship none but God." God gave his prophets and messengers different rituals than what he gave to Muhammad's(saw)followers.The final message of Islam was completed in Muhammad's (saw) lifetime.

“Better to die on one's feet than to live on one's knees.” -Dolores Ibárruri