Sura Saaffaat – Quran 37: Salam On Messengers
God is not sending salam on these messengers – God is relating how people send salam on them. If you read Quran in English, the best translation I have found is by Muhammad Asad. He capitalizes letters of a word when a new topic starts in the middle of a surah, puts quotes around words in proper places, and shows continuation of an ayah into the next ayah by putting proper punctuation, etc. This way the meaning becomes much clearer. Your question about Ilyas is not clear. Please elaborate.