The Message is crystal clear, but we human need to take heed of it
The message is:
Quran Chap: 5 Ver: 72-7
They have certainly disbelieved who say, “Allah is the Messiah, the son of Mary" while the Messiah has said, "O Children of Israel, worship Allah , my Lord and your Lord." Indeed, he who associates others with Allah - Allah has forbidden him Paradise, and his refuge is the Fire. And there are not for the wrongdoers any helpers.
Quran Chap:4 Ver:171-173
O! People of the Scripture(Jews & Christians), do not commit excess in your religion or say about Allah except the truth. The Messiah, Jesus, the son of Mary, was but a messenger of Allah and His word which He directed to Mary and a soul [created at a command] from Him. So believe in Allah and His messengers. And do not say, "Three"(Do not say God is Three, Trinity); desist - it is better for you. Indeed, Allah is but one God. Exalted is He above having a son. To Him belongs whatever is in the heavens and whatever is on the earth. And sufficient is Allah as Disposer of affairs.
Quran Chap4: Ver 155-159
That they rejected faith: that they uttered against Mary a grave false charge.
That they said (in boast) "We killed Christ (Maseeh) Jesus the son of Mary the Apostle of Allah"; but they killed him not nor crucified him but so it was made to appear to them and those who differ therein are full of doubts with no (certain) knowledge but only conjecture to follow for of a surety they killed him not.
Nay Allah raised him up unto Himself; and Allah is Exalted in Power Wise.
And there is none of the People of the Book but must believe in him before his death; and on the Day of Judgment He will be a witness against them.
Quran Chap:5 Ver:116-118
And [beware the Day] when Allah will say, "O Jesus, Son of Mary, did you say to the people, 'Take me and my mother as deities besides Allah?'" He will say, "Exalted are You! It was not for me to say that to which I have no right. If I had said it, You would have known it. You know what is within myself, and I do not know what is within Yourself. Indeed, it is You who is Knower of the unseen.