Kelvin Davis wants to be the man who stands up in Parliament against domestic violence when he becomes an MP again next month.
Mr Davis will replace Labour list MP Shane Jones next month after Mr Jones' shock announcement this week that he was resigning and would not fight the next election.
Mr Davis, who spent one term as a Labour list MP, said he would push several key issues when back in the House - Maori education, regional development, improving the number of people speaking te reo Maori, and "being the male in Parliament who stands up and says enough is enough over domestic violence".
"We should not be hurting our women and children and whanau through physical, emotional or sexual violence."
Mr Davis, a former school principal, said his return to Parliament - after missing out by 832 votes to Hone Harawira in the Te Tai Tokerau electorate race in the 2011 election and not being high enough on the Labour list at that stage - was a bit sooner than he had expected.