Hitler promised his people multiple things. These were:
1. A stable government (since their economy was destroyed by the Treaty of Versailles)
2. A population of the "dominant" race (white blondes)
3. End Treaty of Versailles and stop reparations to other countries
How he acted on this:
1. Created the labor camps as well as infiltrated other countries and stole their resources
2. Created the labor and death camps to eliminate non-"perfect" races (including Jews)
3. Re-armed the military, took other countries, stopped paying other countries, started movements, broke all of the limits the Treaty of Versailles held Germany under.