Psalms 89:6
Psalms 89:66For who in the skies can compare with the LORD? Who among the heavenly beings is like the LORD?
JWs read as confirming Jehovah's incomparability among spiritual beings. Jesus, being "a god" but not Jehovah, is held to be one of the "sons of God" referenced here — superior to other creatures but decisively below the Father. The verse is treated as evidence for the two-category framework: Jehovah on one side, all other elohim (including Jesus) on the other.
This is the syllogism's keystone. Read in the JW's own NWT: "Who in the skies can compare to Jehovah? Who among the sons of God is like Jehovah?" The implied answer is nobody. Now place next to it: Jesus is "the exact representation of [God's] very being." If no son of God can resemble Jehovah, and Jesus is the exact representation of Jehovah's being, the contradiction is forced unless Jesus is not merely a son of God but Jehovah himself. The argument needs no Greek, no contested NWT rendering, and no external scholarship — only consistent reading of the JW's own Bible. Let the contradiction sit; do not rush to fill the silence.