Horowitz grew up in
Merkaz Shapira, and attended
Yeshivat Or Etzion, the
Beit El yeshiva, and
Mercaz HaRav Kook. He graduated from the Military Rabbi course in 1987, and joined the
Military Rabbinate, becoming rabbi of the
Givati Brigade. He later gained an
MBA from
Ono Academic College, and in 1990, he became head of a yeshiva in
Kiryat Arba. In 2010, he was appointed Adviser on Settlement Affairs by
Nazareth Illit mayor Shimon Gapso. Prior to the
2013 Knesset elections, he was placed 13th on the Jewish Home list. Although the party won 12 seats, Horowitz entered the Knesset on 16 February 2015 as a replacement for
Uri Orbach, who died in office. However, he was not on the party's list for the
March 2015 elections, and lost his seat. ==References==