Teina Toru was sentenced to 12 years and nine months jail at the High Court in New Plymouth on Friday.

A "preacher" found guilty of violent rape and abuse continued to plead his innocence at his sentencing, claiming he had been discredited by police.

Teina Toru was sentenced to 12 years and nine months prison when he appeared before Justice Robert Dobson in the High Court at New Plymouth on Friday.

He had previously pleaded not guilty to 15 charges, including two counts of rape, two of kidnapping, three of assault with intent to injure and one of attempting to pervert the course of justice.

He faced a judge-alone trial in the High Court at New Plymouth in May, with Dobson finding him guilty of all counts.

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He had earlier pleaded guilty to another charge of assault with intent to injure.

Before Dobson handed down his sentence on Friday, Toru's convictions were read aloud and he was asked if he had anything to say as to why a sentence should not be imposed.

"Just that I'm not guilty of these charges," Toru said.

"I've been falsified by the detective."

During the trial, the court heard how the defendant and the complainant met on a religious social media website in March 2017.

After meeting in person the two lived together at various Taranaki addresses where they would often have disagreements about religion - Toru is a practising Seventh-day Adventist and the woman is a former Jehovah Witness.

While giving evidence, the woman described Toru as a preacher and told of how he often counselled others online with bible scriptures.

This led to the offending on July 19 after the victim became insecure when learning the defendant was messaging another woman.

A violent and sexual attack then played out, with a similar incident occurring again two days later.

In a video police statement shared in court the victim recounted the rapes in detail.

"He was saying he was the man of the house and I was to submit to him and not speak," she said in the video.

While the woman gave a full account of the violence and rapes during her police interview, she was reluctant to give evidence in court.

After being warned about being in contempt of court, she agreed to give evidence, which lasted two days.

But during her testimony she repeatedly denied the sexual assaults took place.

In his summary, on Friday, Dobson said the complainant, who was present in court supporting Toru, had tried her best to deny the offending when giving evidence.

"After analysing all of the evidence, I was satisfied with complainant's version of events described in her recorded interview with police some days after the offending was an accurate description," he said.

"I was satisfied on that despite her attempts to deny that version of events in her evidence in the witness box.

"I rank the seriousness of your offending on the basis of the description given in that police interview."

Dobson handed down a concurrent sentence of 11 years and six months on all charges except for attempting to pervert the course of justice for which he imposed a cumulative sentence of 15 months.

Flanked by two police officers, Toru stared down Dobson as he was led from court to begin his jail sentence.