No, the word " tongue " must be kept in context to 1cor 12 to 14 as Paul was given it from the Holy Spirit. Isaiah 28 is not about the gifts of the Holy Spirit. Isaiah 28 does not start with " Now concerning spiritual gifts I would not have you unlearned" (ignorant ). The foundation is not Isaiah 28, it is the very words of Jesus in Acts 1:28 and then in 1cor chapter 12 to 14. Very sad you would try to cause confusion with the word of God. trying to take Hebrew writing and make it fit Greek writing in the New Testament and doing so inappropriately. What a joke and perverted understanding. What is wrong with you guys ?
You are correct Isaiah 28 does not start with " Now concerning spiritual gifts I would not have you unlearned" (ignorant ). it would seem many stay as far away from the foundation of the doctrine found in Isaiah 28, Like it was never there in the first place
It starts by informing us why God mocked those who mocked His word prophecy so God as a sign against those who refused hear prophecy understand when he came brought the spiritual gift of prophecy His interpretation in other languages other than Hebrew alone.
Its one sign what does it confirm?
Look to what the signs confirms, and why it was given to them who surely do whatsoever comes from their own mouths as oral traditions of men .
As for the
word that thou hast spoken unto us in the name of the
Lord, we
will not hearken unto thee.
But we will certainly do whatsoever thing goeth forth out of our own mouth, to burn incense unto the queen of heaven, and to pour out drink offerings unto her, as we have done, we, and our fathers, our kings, and our princes, in the cities of Judah, and in the streets of Jerusalem: for then had we plenty of victuals, and were well, and saw no evil.1 Corinthians 44: 16-18
This new tradition called tongues todays using it to confirm they believe prophecy simply turns things upside down to take away the understanding of prophecy.
Do the work? What does it confirm and who is pointing to? The law is not subject to change. That leaves the new oral tradition of men that they call tongues. Which master?
In
the law it is written, With men of other tongues and other lips will I speak unto this people; and
yet for all that will they not hear me, saith the Lord. Wherefore tongues are
for a sign, "not to
them that believe",
but to them that
believe not: but prophesying serveth not for them that believe not, but for them which believe.1 Corinthians 14:21-22