2:256. There is no compulsion in religion. Verily, the Right Path has become distinct from the wrong path. Whoever disbelieves in Taghut and believes in Allah, then he has grasped the most trustworthy handhold that will never break. And Allah is All-Hearer, All-Knower.

2:257. Allah is the Wali (Protector or Guardian) of those who believe. He brings them out from darkness into light. But as for those who disbelieve, their Auliya (supporters and helpers) are Taghut [false deities and false leaders, etc.], they bring them out from light into darkness. Those are the dwellers of the Fire, and they will abide therein forever.

From the Qur’an, surah al-Baqarah. May Allah make it easy.