Pearls of Bhagavad Gita- Chapter1.3

Bg 1.3

paśyaitāṁ pāṇḍu-putrānām
ācārya mahatīṁ camūm
vyūḍhāṁ drupada-putreṇa
tava śiṣyeṇa dhīmatā

Translation: 

O my teacher, behold the great army of the sons of Pāṇḍu, so expertly arranged by your intelligent disciple the son of Drupada.

Import:

Although Pandavas army  were less in number it does not mean they will lose the battle as even 1 good quality can kill and destroy all bad qualities.