The word(s) "israel" appears 53 time(s) in 51 verse(s) in Quran in Mohsin Khan translation.

(51) O you who believe! Be you helpers (in the Cause) of Allah as said 'Îsa (Jesus), son of Maryam (Mary), to the Hawariyyun (the disciples): "Who are my helpers (in the Cause) of Allah?" The Hawariyyun (the disciples) said: "We are Allah's helpers" (i.e. we will strive in His Cause!). Then a group of the Children of israel believed and a group disbelieved. So We gave power to those who believed against their enemies, and they became the victorious (uppermost).