Since the start of the Gita, we have seen Arjuna speak whenever he has a doubt or needs further clarification. With this shloka, Arjuna acknowledges that he has completely understood the true nature of Ishvara since the knowledge is coming from the source, from Ishvara himself. 

“Those who are devoted to Lord Krishna never tire of hearing descriptions of his divine pastimes. The nectar of these pastimes is such that the more it is relished the more it increases.”
-
Send in a Voice Message - https://anchor.fm/spirituallearningpodcast/message