Benjamin Netanyahu will testify for the first time in his corruption trial on Tuesday.
The Israeli Prime Minister is suspected of bribery, fraud and breach of trust.
Netanyahu was granted a reprieve because of unrest in the Middle East, but judges ruled on Thursday that he must testify, Reuters reported.
Netanyahu faced three charges in 2019 over gifts from millionaire friends and seeking possible benefits for media moguls.
He himself denies any wrongdoing and does not admit guilt.
The prime minister called the investigations against him a witch hunt in a statement.
Netanyahu believes that some law enforcement officials are trying to carry out a coup through political investigations.
Netanyahu, in power since 2009, could become the first sitting prime minister to be charged with a crime.