The Bible says God cannot die. Yet Trinitarians assert that Jesus must be God himself in order to die for the sins of mankind stands in stark contradiction to all scriptural evidence. It was Jesus, not God, that died.
“Lord, are you not from everlasting? My God, my Holy One, you will never die. You, Lord, have appointed them to execute judgment; you, my Rock, have ordained them to punish.” (Hab 1:12)
From this scripture, we can see that it is impossible that Jesus could be the God who would die for the sins of mankind, since the prophecy of Habakkuk was written over 600 years prior to Jesus and clearly states that God will never die.