The text reflects on the relation between the Triune God and family. It focuses on the fact that man is created to be a part of the family of the Father, the Son and the Holy Spirit, which originates in Jesus Christ's sacrifice for the Church, his Bride, and his everlasting union with her.
Human family is a natural, but not sufficient precondition of the eschatological family of the Trinity; in order to fulfil God's plan, a family should be connected with the Crucified by faith. Christian family is already a family of God, even if it is still a part of the militant Church.