Colossians 2:2-3

[For my hope is] that their hearts may be encouraged as they are knit together in [unselfish] love, so that they may have all the riches that come from the full assurance of understanding [the joy of salvation], resulting in a true [and more intimate] knowledge of the mystery of God, that is, Christ, in whom are hidden all the treasures of wisdom and knowledge [regarding the word and purposes of God].