Bhagavad Gita Verse 33, Chapter 9

kim punarbraamhanaahaa punyaa bhaktaa raajarshayastathaa |
anityamasukham lokamimam praapya bhajasva maam || 33 ||
 
What (to speak) again of pious brahmins and royal sages? Having obtained this impermanent world which is devoid of happiness, you should worship me.
 
kim : what
punaha : again
braamhanaahaa : brahmins
punyaahaa : pious
bhaktaahaa : devotees
raajarshayaha : king sages
tathaa : and
anityam : impermanent
asukham : devoid of happiness
lokam : world
imam : this
praapya : having obtained
bhajasva : worship
maam : me
 
Shri Krishna concludes the topic of the glory of devotion by asserting that everyone, including brahmins or sages who have renounced the world, as well as “raajarshis” or sages who have become kings. Having described the glory of devotion, he then instructs Arjuna to worship Ishvara.
 
In describing the glory of devotion, Shri Krishna highlighted three types of people. The worst kind of person is a sinner, who has such a high level of attachment to the material world that he is ready to harm others. A better type of person is a sinner who has a lower level of attachment to the material world such as a businessperson. Better than that person is someone like a sage who has the lowest level of attachment, which means that highest level of detachment or vairagya. It does not matter which kind of person wants to become a devotee. Everyone is eligible.
 
Shri Krishna also explains the reason for seeking the path of devotion. He says that the world in which we live in has two main defects. It is anityam or impermanent, and it is asukham or devoid of joy. We usually rush into worldly pursuits such as money, positions, wealth, fame, titles and so on. None of those are permanent or will give long-lasting happiness. We sometimes think that others who possess these things are happier than we are, but that is not true. Impermanence and sorrow is the nature of this world.
 
Therefore, Shri Krishna urges us to follow a single pursuit. How do we do it? He explains this in the next and concluding shloka in this chapter.