We read in Mtt 24:36 (NRSVCE):
But about that day and hour no one knows, neither the angels of heaven, nor the Son, but only the Father.
Here, Jesus does not mention Holy Spirit being privy to the `secret' about the end of the world which, according to the Lord, only the Father knows. That implies that there is communication going on among the three Persons of the Trinity,with the Will of the Father being revealed to the Son and the Holy Spirit at the ordained time. My question therefore is: What does the Catholic Church teach about the communication that takes place among the Persons of the Trinity ?