The Parable of the Friend at Night (the Importunate Neighbor) [S02E22] 

Powerful video!!!

I struggle with this understanding. If this is only about persistence in prayer, and we apply the (unique in the NT) word for "shamelessness" to the knocking/praying person - we are only left to imagine God as the rude, lazy, grumpy, impolite, grudging friend asleep; unwilling to help us unless we keep pestering Him. That is not how Jesus described the Father. The use of the original Greek in the OT, and in the 1st Century literature outside the Bible, is not simply persistent or bold. It describes people who are wicked, corrupt. immoral, self-centred (and shameless about that behaviour.)