22 Judas, not Iscariot, said to Him; “Lord, what has happened that you are to show Yourself to us and not to the world?”
23 Jesus answered and said to him: “If anyone should love Me, he will keep My word, and My Father will love him, and We will come and make Our home with him.”
The name of the father of this Judas was James. John clearly identified him as not being the one who had gone out into the night to betray Jesus.
No doubt all of us can remember times when we have not understood what is going on around us, and we will continue to encounter such times. Judas found himself in a similar situation. He could not understand what Jesus meant when He said that they would see Him, but the world would not. Therefore, he asked Jesus for some clarification.
When we do not understanding something it is not good for us to fall back on human logic and understanding to try and work it out. It is always good for us to remember that God’s word tells us:
 Trust in the LORD with all your heart; do not depend on your own understanding.
 Seek His will in all you do, and He will direct your paths – Proverbs 3.5-6 (NLT).
It was obvious that Judas had no understanding upon which he could rely, recognising this he did what Jesus had instructed them to do, which was to ask. Jesus had said that if we ask we will receive.
The Jewish understanding of the revealing of the Messiah was that it would be a public manifestation.
“Look! I am sending My messenger, and he will prepare the way before Me. Then the Lord you are seeking will suddenly come to His Temple. The messenger of the covenant, whom you look for so eagerly, is surely coming,” says the LORD Almighty – Malachi 3.1 (NLT).
It is possible that Judas may have been trying to relate what Jesus was saying about them seeing Him but not the world, with the prophecy of Malachi. This speaks of the Messiah appearing in the temple, a very public place, where many would see Him.
When we find ourselves not understanding something, then ask Jesus and expect His word to open our understanding, and so produce faith.