"all the fulness"
    Notice that this verse teaches that 100% of the Godhead dwelt in the Lord Jesus. This- as opposed to "1/3" use of the name of God, "YHVH" before and after the word "one" in the definition ends any Trinitarian confusion of multiple persons in the Godhead. The fact that the proper name of God is repeated twice teaches that the definition of God found here is of one Person.