Ephesians 3:5

3:5 Now this secret was not disclosed to people in former generations as it has now been revealed to his holy apostles and prophets by the Spirit,

Ephesians 3:18-19

3:18 you may be able to comprehend with all the saints what is the breadth and length and height and depth, 3:19 and thus to know the love of Christ that surpasses knowledge, so that you may be filled up to all the fullness of God.