“But, lo, he speaketh boldly, and they say nothing unto him. Do the rulers know indeed that this is the very Christ?”
King James Version (KJV)
7:27 When Christ cometh, none knoweth whence he is - This Jewish tradition was true, with regard to his Divine nature: in that respect none could declare his generation. But it was not true with regard to his human nature, for both his family and the place of his birth were plainly foretold.
7:28 Then cried Jesus - With a loud and earnest voice. Do ye both know me, and know whence I am ? - Ye do indeed know whence I am as a man. But ye know not my Divine nature, nor that I am sent from God.
Joh 7:26 Do the rulers know, etc.? As they did not seize him according to their purpose, the question arose what had changed the mind of the rulers. Had they found out that he was the Christ?