Allah SWT bears witness that none has the right to be worshiped but He alone, and the angels, and those having knowledge (also give this witness); maintains His creation in Justice. None has the right to be worshiped but He alone, the All-Mighty, the All-Wise. [3:18]

Muhammad ibn Abdul Wahab said there are four things that every single Muslim must strive to know. Four matters that are very important to the life of every single Muslim.
  1. Seeking knowledge
  2. Acting upon that knowledge
  3. Calling people to that knowledge
  4. Train oneself to be patience upon that knowledge