I want their hearts to be encouraged and united in love, so that they may have all the riches of assured understanding and have the knowledge of God's mystery, that is, Christ himself.

That their hearts may be encouraged, being knit together in love, to reach all the riches of full assurance of understanding and the knowledge of God's mystery, which is Christ.
That their hearts may be encouraged, being knit together in love, and attaining to all riches of the full assurance of understanding, to the knowledge of the mystery of God, both of the Father and of Christ.
I want them to be encouraged and knit together by strong ties of love. I want them to have complete confidence that they understand God’s mysterious plan, which is Christ himself.
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