In Valmiki Ramayan, the sage poet Valmii lists 16 qualities and asks Narad who is the person with these qualities. In reply, Narad takes Ram's name. Those 16 qualities are: -
1. virtuous
2. valorous
3. knower of righteousness
4. grateful for the service rendered
5. truthful
6. of firm resolve
7. of good character
8. well-wisher of all beings
9. truly learned
10. ablest
11. uniquely good looking
12. courageous
13. has conquered anger
14. resplendant/self-effulgent
15. non-envious
16. whom even gods fear when he is provoked for battle