Vanderhoven7, you are correct, I did a comment on this years ago, doing a list like the one shared on here. Here is a connection, the WTS teaches that Isaiah 43:10-12 is a spiritual type of the "anointed" the true and only "spiritual witnesses of Jehovah" leaving out the great crowd. When the WTS uses Galatians 6:16, Paul there is referring to anointed Christians only. "The new nation is the anointed Christian congregation, born at Pentecost 33 C.E. Its first members were Jewish disciples of Jesus who accepted him as their heavenly King. (Acts 2:5, 32-36) However, they were members of God’s new nation, not on the basis of their Jewish descent, but on the basis of faith in Jesus. Thus, this new Israel of God was something unique—a spiritual nation. When the majority of the Jews refused to accept Jesus, the invitation to be part of the new nation was extended to the Samaritans and then to the Gentiles. The new nation was called “the Israel of God.”—Galatians 6:16." w95 7/1 p. 11-12
In fact, never are the "other sheep" (WTS definition) called "spiritual Israelites" and the WTS makes references of these of their being in the new covenant, and the WTS says that the "other sheep" or "great crowd" are not taken into that covenant. Thus per their definition, non-anointed jws are not "spiritual Israelites" thus not Jehovah's witnesses as Isaiah says, since Isaiah's words were only directed to Israelites. I know this may seem complicated but the WTS likes it that way.