Yes, it does contradict the trinity. The man, Jesus, died on the cross. Our Father God is everlasting (Isaiah 40:28) and eternal (Deuteronomy 33:27). He cannot die. God and Jesus are two distinct beings.
Jesus shows He is one in purpose and spirit with God by His prayer in John 17:2. “That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.” Will the trinity expand to include other believers?
In 325 AD, the Roman emperor Constantine convened a council of church bishops at Nicaea to resolve the conflict over whether Jesus was created and other issues. In a compromise, these bishops decided God and Jesus were a duality (“the same substance”). The Holy Spirit was added to this concept some fifty years later to form the trinity doctrine.
There are two scriptures which seem to imply the trinity, without actually stating it: John 1:1 and 1 John 5:7, 8.
John 1:1: This verse should read—“In the beginning was the Word and the Word was towards the God and a god was the Word.” “Towards” is “pros” used in John 1:29, “The next day, John sees Jesus coming towards (to) him.” Of the 99 uses of “pros” in John’s Gospel, it is translated “unto” or “to” 86 times, but not again one time as “with.”
“Towards God” is an idiom that means “pertaining to God,” or, “in the service of God.” The identical idiom is used again in Hebrews 2:17 (NASB),“Therefore, He had to be made like His brethren in all things, so that He might become a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of the people.” The same idiom is translated as “with God” in Romans 5:1 (NASB) “Therefore, having been justified by faith, we have peace with God