By Shaykh al-Islam Ibn Qayyim Aa-Jawziyyah

In the Qur'an, Allah has revealed the machinations of the hypocrites, He has unveiled their beliefs, their qualities, and made their goals clear so that the believers can be aware of them. He divided mankind into three groups in the beginning of Surah al-Baqarah: the believer, the disbeliever, and the hypocrite. He mentioned four verses concerning the believers, two verses concerning the disbelievers, and thirteen verses concerning the hypocrites due to their plenitude and the great harm and tribulation they bring to Islam and the Muslims. The harm they cause to Islam is truly severe for they claim to be Muslims, they claim to aid and support Islam, whereas in reality they are its enemies seeking to destroy it from within, covertly spreading their corruption and ignorance such that the unwary thinks that what they are upon is knowledge and right action.