In your own words, and without using verses or Scripture, what is the "message" of the Gospels?
Also to keep it coherent just give the most important or a few reasons, not a whole list or diatribe making it impossible and too subjective to discern any more/less important messages
If you mean the true message of the Gospels: I could say it's really what
stated in the Quran that to worship only one god ALLah and not to associate
with him partners and this the main message of all the prophets including
Isaa (Jesus) in quran you will find:
[005:072] Surely, they have disbelieved who say: "Allâh is the Messiah ['خsâ (Jesus)], son of Maryam (Mary)." But the Messiah ['خsâ (Jesus)] said: "O Children of Israel! Worship Allâh, my Lord and your Lord." Verily, whosoever sets up partners (in worship) with Allâh, then Allâh has forbidden Paradise to him, and the Fire will be his abode. And for the Zâlimûn (polytheists and wrong doers) there are no helpers.
[005:073] Surely, disbelievers are those who said: "Allâh is the third of the three (in a Trinity)." But there is no Ilâh (god) (none who has the right to be worshipped) but One Ilâh (God Allâh). And if they cease not from what they say, verily, a painful torment will befall on the disbelievers among them.
[005:074] Will they not turn with repentance to Allâh and ask His forgiveness? For Allâh is Oft-Forgiving, Most Merciful.
[005:075] The Messiah ['خsâ (Jesus)], son of Maryam (Mary), was no more than a Messenger; many were the Messengers that passed away before him. His mother [Maryam (Mary)] was a Siddîqah [i.e. she believed in the Words of Allâh and His Books (see Verse 66:12)]. They both used to eat food (as any other human being, while Allâh does not eat). Look how We make the Ayât (proofs, evidences, verses, lessons, signs, revelations, etc.) clear to them; yet look how they are deluded away (from the truth).
[005:076] Say (O Muhammad [sal-Allâhu 'alayhi wa sallam] to mankind): "How do you worship besides Allâh something which has no power either to harm or benefit you? But it is Allâh Who is the All-Hearer, the All-Knower."
with my best wishes
Maj