66 The words “this happened” are not in the Greek text but are supplied to complete an ellipsis.
67 A quotation from Ps 35:19 and Ps 69:4. As a technical term law (νόμος, nomos) is usually restricted to the Pentateuch (the first five books of the OT), but here it must have a broader reference, since the quotation is from Ps 35:19 or Ps 69:4. The latter is the more likely source for the quoted words, since it is cited elsewhere in John’s Gospel (2:17 and 19:29, in both instances in contexts associated with Jesus’ suffering and death).

In other versions

But the word that is written in their Law must be fulfilled: ‘They hated me without a cause.’

But this is to fulfill what is written in their Law: ‘They hated me without reason.’

But this happened so that the statement written in their law might be fulfilled: They hated me for no reason.

This fulfills what is written in their Scriptures: ‘They hated me without cause.’

But this happened so that the word that is written in their law would be fulfilled, ‘They hated me without a reason.’

But this cometh to pass, that the word might be fulfilled that is written in their law, They hated me without a cause.

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