If therefore your whole body [i.e., your entire life] is full of light [i.e., sees and responds to things correctly], with no blind spots [i.e., areas where you do not see and act correctly], your body [i.e., your life] will be fully illuminated [i.e., directed into proper conduct] just like a bright, shining lamp illuminating you [i.e., enabling you to see and respond to things properly]."

and they were not able to respond to these things.

But Abraham said, 'They have Moses and the prophets; they must respond to them.'

He replied to him, 'If they do not respond to Moses and the prophets, they will not be convinced even if someone rises from the dead.'"

and if indeed I will ask you, you will not respond to me, or release me.

So, he asked Him many questions, but Jesus did not respond to any [of them].