And to know the love of Christ, which passeth knowledge, that ye might be filled with all the fulness of God.
Passeth - surpasseth. The paradox, "to know ... which passeth knowledge," implies that by "know" he does not mean that we can adequately know: all we know is, that His love exceeds far our knowledge of it; and, with even our fresh accessions of knowledge hereafter, will still exceed them, even as God's power exceeds our thoughts (Ephesians 3:20). "Know" experimentally what intellectually is beyond our powers of knowing (1 Corinthians 8:2-3).
Filled with - Greek, 'filled even unto all the fullness of God' (the grand goal); i:e., filled, each according to his capacity, with the divine holiness, wisdom, knowledge, and love; even as God is full, and as Christ, who dwells in your hearts, hath 'all the fullness of the Godhead dwelling in Him bodily' (Colossians 2:9).