سورة Al-Baqarah ( The Cow ) - الآية 211

Ask the Children of Israel how many clear Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) We gave them. And whoever changes Allah's Favour after it had come to him, [e.g. renounces the Religion of Allah (Islam) and accepts Kufr (disbelief),] then surely, Allah is Severe in punishment.