Nietzsche says God is dead which I agree with, but if the Bible trinity idea is / was true and Jesus died on the cross, staying dead for Easter weekend, surely that means God was dead too. If Jesus was God, and Jesus died, so did God, so how did the World / Universe carry on in his / their absence? If we could survive three days without God maybe we could survive forever without one too
There are a few assumptions in the OP that are not quite correct according to my research.
I'd like to take them one at a time, if I may....
"if the Bible trinity idea is / was true"
The trinity is not a Bible idea, so
@Regiomontanus is correct, the trinity was introduced much later.....over 300 years after Jesus died.
"and Jesus died on the cross, staying dead for Easter weekend, surely that means God was dead too."
Jesus died on a "stauros" which is incorrectly translated "cross" in many Bibles.
Stau·rosʹ in both the classical Greek and Koine carries no thought of a “cross” made of two timbers. It means only an upright stake, pale, pile, or pole, as might be used for a fence, stockade, or palisade. Says Douglas’
New Bible Dictionary under “Cross,” page 253: “The Gk. word for ‘cross’ (
stauros; verb
stauroo . . . ) means primarily an upright stake or beam, and secondarily a stake used as an instrument for punishment and execution.”
To venerate a cross is actually idolatry (Exodus 20:4) and a mistaken act of devotion because the cross predates Christianity by centuries as an object of worship. It actually has very grubby origins.
As for the connection to "Easter"...there is no connection at all. Easter is derived from the worship of a fertility goddess whose emblems included rabbits, and eggs because they represented fertility. Her name was Oestre (pronounced "Easter" or "Astarte" depending on what religion you followed) and this pagan festival was just another way that paganism was used to convert the heathens to "Christianity" (which by that time didn't really resemble the original at all.)
As for God being dead.....an immortal cannot die, so Jesus was not God. He never once claimed to be anything but "the son of God".
"so how did the World / Universe carry on in his / their absence? If we could survive three days without God maybe we could survive forever without one too."
The universe has never had to "carry on" without its Creator. God sent his son to earth to redeem mankind and he offered his life willingly to pay the price for our release. (John 3:16) The Universe cannot survive without God just as the humans on this earth cannot either. Humanity is getting closer and closer to extinction by their own hand from repeatedly ignoring him. This fact becomes more evident every day.
At
Ecclesiastes 1:4 the Bible says:
“A generation goes, and a generation comes, but the earth remains forever.” And at
Isaiah 45:18 it says
“God is the Creator of the heavens. He formed the earth and made it. He established it; He did not create it to be empty, but formed it to be inhabited—“I am Yahweh, and there is no other."
And “inhabited” it will yet be in God’s due time with a perfect race of humankind, favored with the gift of eternal life!
