in the hadith there is a severe warning for anyone who ventures to speak about the Qur’an according to his own opinion—that is, who interprets it in line with his personal desires rather than the demands of classical Arabic and the sacred law. Whoever explains the Qur’an by whim and private judgment should take his seat in the Fire.
Conversely, if a person interprets the Qur’an in keeping with the Arabic language—and he is truly versed in that language—then he is not at fault, for the Qur’an was revealed in eloquent Arabic and should be explained by what that language signifies. The same applies when certain words have shifted from their original linguistic meaning to an established legal meaning: if one expounds them according to their Sharʿī sense, there is no blame upon him.
In short, one must grasp what Allah intends in His Book and what the Prophet intends in his Sunnah, so as to interpret them only in the manner Allah and His Messenger meant. Allah alone grants success.