John 6:43
Jesus answered them, "Stop grumbling among yourselves.
John 6:64
But there are some among you who don't believe..." - because Jesus knew from the beginning those who weren't believing, as well as the one who would betray him.
Hebrews 4:13
No creature can hide from him, but everyone is exposed and helpless before the eyes of the one to whom we must give a word of explanation.
Matthew 16:8
Knowing this, Jesus asked them, "You who have little faith, why are you discussing among yourselves the fact that you don't have any bread?
Mark 9:33
Then they came to Capernaum. While Jesus was at home, he asked the disciples, "What were you arguing about on the road?"
John 16:19
Jesus knew that they wanted to ask him a question, so he asked them, "Are you discussing among yourselves what I meant when I said, "In a little while you will no longer see me, then in a little while you will see me again'?