Mordechai Arieli (Morzinsky) was born in 1909 in the city of Sobalki, Poland. His family was traditional, and his father was a painter. At first he studied in a room and in a Russian folk school. At a Hebrew high school he studied seven classes until he met Boris Schatz, who recommended that he go to Eretz Israel to study at Bezalel.
In 1926 he immigrated to Israel and began studying art at the Bezalel Academy until the closure of the school in 1928. During his studies at Bezalel he was considered one of the "rebels" because of his tendency to modern painting. In 1931, Arieli traveled to Paris, where he stayed until 1934. During these years he studied at the Grande Schumier and the Ecole Supérieure des Décines. In 1937 he joined the Association of Painters and Sculptors, and in 1949 joined the "New Horizons" group. He served as Group Secretary between 1953 and 1957 and exhibited at all the Group's exhibitions in Israel and around the world.
Arieli's style in the late 1920s was naive - realist, which is evident in portrait art and his inanimate nature. During the 1930s and 1940s, he was influenced by the atmosphere of the country and incorporated in his works Oriental figures and the landscapes of the country.
At the beginning of the 1950s, Arieli began to appear as an influence on the cubist style, and he incorporated sharp geometrical forms into his works. In the mid-sixties and seventies, Arieli was based on the abstract constructivist style, in which he created a solid architectural building based on bright patches of color that create a delicate balance between them.
Many of Arieli's paintings were made in gouache on paper, his brush strokes lightly and spontaneously. In contrast to the paintings of gouache, Arieli's oil paintings were made on medium size fabrics, and the paintings are designed and very restrained in relation to the gouache paintings. In his oil paintings, the thin layers of paint appear delicately and precisely.
Arieli passed away in 1993.
Arieli has exhibited in many exhibitions around the world. And even won the prestigious Dizengoff Prize twice.
His works are found in many collections and museums in Israel and abroad.