And do not say, "Three"
Allah the one created Jesus with the word ( be ) then he was created. Jesus is a created human being. It is a self evident fact the the god can not be created. Therefore, trinity makes no sense.
Allah said ( interpretation of the meaning ) :
{ O People of the Scripture, do not commit excess in your religion1 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"; 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 ( 4 : 171 )