Joshua was completely faithful to God and in return God gave him land and wisdom as it says in the bible 'Joshua ch 1 vrs 3" Every place upon which the sole of your foot will tread to you people I...
There are many ways to say God in Hebrew. The most common among Jews is Hashem (ה׳) or Elohim (אלוקים)The word for god (lower case g) is elil (אליל) and the plural is elilim (אלילים)
The Jews (formerly called Hebrews) worship one ethical God who according to tradition and Hebrew scripture, created the universe. Modern Jews understand God in many different ways.