ym asks, "why masks?"

John 4:25-26
25 The woman said, "I know that Messiah" (called Christ) "is coming. When he comes, he will explain everything to us."
26 Then Jesus declared, "I who speak to you am he."

Matthew 13:10-11
10 The disciples came to him and asked, "Why do you speak to the people in parables?"
11 He replied, "The knowledge of the secrets of the kingdom of heaven has been given to you, but not to them."

Mark 4:10-12
10 When he was alone, the Twelve and the others around him asked him about the parables.
11 He told them, "The secret of the kingdom of God has been given to you. But to those on the outside everything is said in parables
12 so that,
" 'they may be ever seeing but never perceiving,
and ever hearing but never understanding;
otherwise they might turn and be forgiven!'"

Has Jesus explained everything about the kingdom of heaven?

If Jesus has explained everything, why did Jesus's disciples try to explain to others what Jesus explained ?

If Jesus has explained everything, why do others try to explain what Jesus explained and what Jesus's disciples explained by producing commentaries, sermons, bible study sessions, etc.?

Does Jesus want people other than the disciples in Matthew 13 and Mark 4 to understand the kingdom of heaven?

If Jesus does, why did Jesus say the words recorded in Matthew 13:11 and Mark 4:11-12?

If Jesus does not, why did Jesus's disciples work against Jesus's will by trying to explain to others what Jesus explained?

If Jesus does not, why do others work against Jesus's will by trying to explain what Jesus explained and what Jesus's disciples explained?