What had inspired prithivi narayan shah for unification of Nepal?

Prithivi Narayan was a very ambitious king. Along with the invasion of the Gorkha he wanted to protect it from the Gorkha troops, so he started to unify the small kingdoms into a single country. ... He was afraid that the neighbouring kings might attack Gorkha while the King was away on his invasion campaign.

judaism, christianity and islam, are all abrahamic religions and therefore have in common the hebrew idea of a single god which is the source of all morality. the idea of the covenant is only related to judaism, while dharma is a concept of indian religions and the four noble truths are basic principles of buddhism.