On this day our Lord was tried before the High Priest, Pilate and Herod; was scourged, mocked, and condemned to death. He was led out to Calvary.

At the third hour He was crucified.

At the sixth hour the sky became dark.

At the ninth hour, crying out, 'It is finished', He died.

Mark 14:53-15:47

A trial that wasn't a trial, because the 'judges' had already made up their minds - he must die.
Pilate knows the right thing but won't do it, and Herod just wants to be entertained.
The soldiers do their job well, beaten and bloody he bears his cross until the nail him to it.

The darkness is not only covering the sun in the sky, but covers our understanding. We know it happened, we know that Christ died for our sins - he took our place and bore our penalty. But there is the limit of what we know.
Why did the Father choose this way?
How does it work that Christ's suffering secures my freedom?
     I don't know, and I'm pretty sure you don't either.

'But this I know, He heals the broken-hearted,
and stays our sin, and calms our lurking fear,
and lifts the burden from the heavy laden,
for yet the Saviour, Saviour of the world, is here.'