When his father died in 1969, he succeeded him as chief rabbi. He translated the Pentateuch, the Siddur (Jewish prayer book) and other books into Danish, as well as writing several books including his autobiography.
When his father died in 1969, he became chief rabbi. He translated the Pentateuch, the Siddur (Jewish prayer book), and other texts into Danish, and authored several books, including his own biography.