John 12:33

(Now he said this to indicate clearly what kind of death he was going to die.) ¹ 

He said this to show the kind of death he was going to die.

But He was saying this to indicate the kind of death by which He was to die.

He said this to indicate how he was going to die.

He put it this way to show how he was going to be put to death.

(This he said, pointing to the sort of death he would have.)

He said this to indicate the kind of death he was to die.

This He said, signifying by what death He would die.

(Now he said this to indicate clearly what kind of death he was going to die.) ¹ 

¹ sn This is a parenthetical note by the author.