One must begin by understanding how words derive and convey meaning. Most words in any language are not isolated, mechanical entities with a singular meaning. They usually have at least two levels of meaning. The first level is the pool of associated meanings that may attach to any given word. This suggests the second level of the meaning of words, which is the precise meaning determined by context.
Many words are somewhat nebulous in meaning until they stand in relationship to other words.
Naturally, this analysis of word meanings holds true for the scripture as well. This drives the meaning of some words to absurdity. Watchtower leaders themselves evidently understand this fact and have felt the need to resolve the logical conflict. 16 and 17 in the Greek text, either latent or explicit, and there is no way to justify its insertion. It is scholastic dishonesty.