The Creator may He be exalted held out to His people promises of immediate rewards and threats of immediate punishment, knowing that as soon as they would be trained for His service, their ignorance of reward and punishment in the next world would be banished their aim in serving would be for His sake alone and they would comply with His Service to draw near to Him. The same can be applied to all passages in the Scriptures that ascribe corporeal attributes to the Creator, may He be exalted.
A person does not become worthy of reward in the World to Come on the strength of his good deeds alone. Rather, in addition to these, there are two factors that qualify him for such a reward from GD.
1. Enlighten others in the service of the Creator and teach them proper conduct
2. Gd's grace, generosity, and goodness
pg 439