From 1961 until 1977, Fr. Purwinski began to serve as an assistant priest in
Daugavpils and after, as a parish priest and vice-dean in
Krāslava,
Baltinava and
Indra. In 1977 he was transferred to Ukraine and began to learn the Ukrainian language and work as assistant priest in
St. Sophia's Cathedral, Zhytomyr (from 1984 he was a dean of the Cathedral). Before moving to Ukraine Fr. Purwinski spoke Polish, Latgalian, Latvian and Russian. Alongside parish work, from 1981 until 1991 he served as a Bishopric Vicar for
Ukraine and
Moldova. On 16 January 1991 he was appointed by
Pope John Paul II as the
Diocesan Bishop of the recreated
Roman Catholic Diocese of Zhytomyr. On 4 March 1991, he was consecrated as bishop by Archbishop
Francesco Colasuonno and other prelates of the
Roman Catholic Church in St. Sophia's Cathedral in
Zhytomyr. ==Later life==