Allah sure is a horrible liar and needs to get his facts straight.
Surah 5:116, 5:73-75:And when Allah said: '(Prophet) Jesus, son of Mary, did you ever say to the people: "Take me and my mother for two gods, other than Allah?" 'Exaltations to You,' he said, 'how could I say that to which I have no right? If I had said that, You would have surely known. You know what is in my self, but I do not know what is in Yours. Indeed, You are the Knowledgeable of the unseen.
Indeed those who say: 'Allah is the third of the Trinity’ became unbelievers. There is but One God. If they do not desist in what they say, a painful punishment will afflict those of them that disbelieve.
Will they not turn to Allah in repentance and ask His forgiveness? He is Forgiving, Merciful.
The Messiah, the son of Mary, was not except a Messenger, other Messengers had gone before him. His mother was in the state of sincerity, they both ate food. See how We make plain to them Our signs. Then, see how perverted they are.
Now what Christian says that the trinity is Father, Son and Mary?
Anyone can clearly see that the Quran is nothing more than a heap of lies conjured up by the demonic heirarchy headed by Satan and his 2 chief demons.