A tablet, in a religious context, is a term used for certain religious texts.
In the Hebrew Bible
Judaism and Christianity maintain that Moses brought the Ten Commandments down from Mount Sinai in the form of two tablets of stone. According to the Book of Exodus, God delivered the tablets twice, the first set having been smashed by Moses in his anger at the idol-worship of the Israelites.
The Preserved Tablet (al-Lawhu 'l-Mahfuz), the heavenly preserved record of all that has happened and will happen, contains qadar. Qadar (Arabic: قدر, transliterated qadar, meaning "fate", "divine fore-ordainment", "predestination") is the concept of divine destiny in Islam.