The word(s) "israel" appears 44 time(s) in 42 verse(s) in Quran in Abdullah Yusuf Ali translation.

(41) And remember, Jesus, the son of Mary, said: "O Children of israel! I am the messenger of Allah (sent) to you, confirming the Law (which came) before me, and giving Glad Tidings of a Messenger to come after me, whose name shall be Ahmad." But when he came to them with Clear Signs, they said, "this is evident sorcery!"

(42) O ye who believe! Be ye helpers of Allah: As said Jesus the son of Mary to the Disciples, "Who will be my helpers to (the work of) Allah?" Said the disciples, "We are Allah's helpers!" then a portion of the Children of israel believed, and a portion disbelieved: But We gave power to those who believed, against their enemies, and they became the ones that prevailed.