How do those who hold to the filiquoe understand 1 Timothy 6:16?

I was thinking about the mention of the Father in the NT with the definite article, first example is John 1:1. In the rest of the NT there is always a theological reverence towards the Father that must be noticed. One quick example is 1 Tim 6:16 "who dwells in unapproachable light, whom no one has ever seen or can see." I do not want to make this question long, so there we go: don't you think that by affirming filioque we actually run over the role (economy, not ontology) of the Father in the New Testament?