Ephesians 1:9
Having made known unto us the mystery of his will, according to his good pleasure which He hath purposed in himself:
God doesn't hide anything from his kids. He is not a mysterious God with mysterious ways. No, not to his kids.
See 1 Corinthians 2:7-14. Take note of verse 10.
From our study in Ephesians 1:9, we see what He did, He made known ... the mystery of his will, according to His good pleasure ...
This is what He loves to do.
He goes ahead to say, ... which he hath purposed in Himself....
He did it intentionally. He intentionally made us know the mystery of His will.