Bismillaah.
Assalaamualaikum. The following extract is taken from the book "The Weakening of Faith. Its symptoms - Causes & Cure" by Shaykh Mohammad Saleh al-Munajjid, where Ibn al-Qayyim (rah.) is quoted as having described Allaah's Greatness as:
"He governs the affairs of the various kingdoms and He commands and forbids, creates, sustains, gives death, gives life, gives power, strips power (to and from whom He will) and alternates the night and day.