According to the Torah, Izhar (Hebrew: יִצְהָר, Modern Yits'har Tiberian Yiṣhār ; "(one who) sparkles"/oil) was the father of Korah, Nepheg, and Zichri, and was a son of Kohath and grandson of Levi, consequently being the brother of Amram and uncle of Aaron, Miriam, and Moses. No further details of his life are given by the Bible, and according to some biblical scholars the genealogy for Levi's descendants is actually an aetiological myth, reflecting popular perception of the connections between different Levite factions;textual scholars a similar religiopolitical group and date to the priestly source).

Despite twice listing Izhar as being among the sons of Kohath, the Book of Chronicles subsequently goes on state, only a few verses later, that it was the (previously unmentioned) son of Kohath named Amminadab that became the father of Korah. Later in the Book of Chronicles, Amminadab is given as the name of the leader of the Uzzielites, a clan which the biblical genealogy proclaims as being descended from Uzziel, Izhar's brother.

Izhar Ashdot (born 1958, Jerusalem) is an Israeli singer-songwriter, guitarist, and a record producer. He is a co-founding member of the Israeli rock band T-Slam.

When he was 11 Ashdot started to play the guitar, two years later he founded his first group, "The Red Dogs".

In 1977 he was recruited to the Israel Defense Forces Radio as a music programming editor, while simultaneously he worked on his own music and recorded the song "Me'uma Lo Kara" (Nothing Happened) which eventually became T-slam's biggest hit, retitled "Lir'ot Ota Haiom" (See Her Today) . While working for the Army Radio he met Yair Nitzani and Dani Bassan, and together they formed a Disco company and played as DJs in parties. After a while they left the Disco style and started to play Rock, founded the band T-Slam, and were joined by Yoshi Sade, Tzuf Philosof and Sami Avzardel.

T-Slam became famous with their single "Radio Hazak" (Loud Radio), and later with the releasing of its album with the same name, which was certified platinum. In March 1981 their first tour began and was very successful. T-Slam won numerous Israeli awards, including "The Band of the Year", and "The Song of the Year" with "See Her Today."