He was a member of an independent society, led by his friend Filippo Palizzi, to promote the liberal arts, called the in 1862.A.R. Willard, page 29 He was appointed consultant for new acquisitions of the Capodimonte art museum in Naples and, thus, had significant impact on the subsequent direction of the collections. In 1868, Morelli became a professor of painting at his old Academy, which now became the Royal Institute of Fine Arts in Naples. From that period onward, his interest turned to religious and mystical themes, drawn from mostly Christian, but also Jewish and Muslim traditions. Perhaps best known from this period is the Assumption on the ceiling of the Royal Palace in Naples. Morelli was also one of the collaborators for the illustrations of the Amsterdam Bible in 1895. From 1899 until his death, he was president of the Royal Academy of Fine Arts in Naples.
