There is no God higher than Shiva

maheshānnāparo devo mahimno nāparā stutih,
aghorānnāparo mantro nasti tattvam guroh param.

There is no God higher than Shiva, there is no hymn better than the hymn on the greatness of Shiva, there is no mantra more powerful than the name of Shiva, there is nothing higher to be known than the real nature of the Guru.
~ Shiva Mahimnah Stotram