Bg 11.5

sri-bhagavan uvaca
pasya me partha rupani
sataso ’tha sahasrasah
nana-vidhani divyani
nana-varnakrtini ca

Word for word: 
sri-bhagavan uvaca — the Supreme Personality of Godhead said; pasya — just see; me — My; partha — O son of Prtha; rupani — forms; satasah — hundreds; atha — also; sahasrasah — thousands; nana-vidhani — variegated; divyani — divine; nana — variegated; varna — colors; akrtini — forms; ca — also.

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The Supreme Personality of Godhead said: My dear Arjuna, O son of Prtha, see now My opulences, hundreds of thousands of varied divine and multicolored forms.

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Arjuna wanted to see Krishna in His universal form, which, although a transcendental form, is just manifested for the cosmic manifestation and is therefore subject to the temporary time of this material nature. As the material nature is manifested and not manifested, similarly this universal form of Krishna is manifested and nonmanifested. It is not eternally situated in the spiritual sky like Krishna’s other forms. As far as a devotee is concerned, he is not eager to see the universal form, but because Arjuna wanted to see Krishna in this way, Krishna reveals this form. This universal form is not possible to be seen by any ordinary man. Krishna must give one the power to see it.