Matthew and Onnalisa served in many different roles in their church, before their involvement in missions. In 202 they went on their first AIM trip to Botswana and Zimbabwe for three months. They taught and preached at different churches and taught classes at the Bible school in Zimbabwe. In November 2021, they went on AIM to Fiji for nine months and in 2023 for fifteen months. Throughout both terms, Matthew and Onnalisa preached at churches, taught classes at the Bible school, started a Bible quizzing program and helped as furlough replacements for nine months for the missionaries. Matt completed many maintenance projects at both the Fiji UPCI headquarters and the Bible school and helped build two new churches. In addition to teaching Sunday school and speaking at ladies' seminars, Onnalisa helped with administrative duties at the Bible school. In May 2024, they were appointed intermediate missionaries to the unreached nation of French Polynesia, where they will be pioneering a new work to establish the first UPC church there. The Nash family look forward to embracing the culture and making as many connections as possible to see this new work thrive and grow.