Then you don't understand the passage of scripture.
What was Paul talking about when he said: 1 Corinthians 13:10 "but when that which is complete has come, then that which is partial will be done away with."
What was it that was not yet complete at the time of Paul's writing but that would be complete in the near future?
And I, of course, believe that you do not understand the passage but are reading into it what is not there. This is not to say that sign gifts continue, or end, but that the passage itself does not provide the evidence.
There are numerous options as to what was not yet completed. I don’t believe that the transition into the New Covenant program is one of them, except as it applies to individual local churches (which would allow for a continuation of these gifts today). But I believe that the church is organic and local, not universal. Paul could be implying that tongues will cease when the church in Corinth reaches a mature state and they are no longer needed. Paul could be pointing to Christ’s return (which may be supported by ch. 15). Paul could be looking into the future where the Canon of Scripture is completed. Paul could simply be pointing out that these things are temporary and will end, but not love.
Please understand me here, it is not that I do not comprehend your conclusions or respect your position. I am, however, pointing out what you seem to be missing. You are reading into the text. It may be that “that which is perfect” refers to the New Covenant program. But Paul is less specific here because exactly when the will cease is not his point.
1. Love never ends. As for prophecies, tongues, knowledge – they will cease.
2. For now we prophesy in part
3. When the perfect comes, the partial will pass away.
4. When I became a man I gave up childish ways. Now we see dimly, but then face to face. Now I know in part, then I shall know fully.
5. Faith, hope, and love abides. But the greatest is love.
6. Pursue love, and earnestly desire the spiritual gifts, especially the gift of prophesy (which is greater than the gift of tongues).
7. Paul reminds the church of the faith they received and the Resurrection of Christ.
Where you are wrong is not necessarily in your opinion that tongues, knowledge, and prophesy ended when the New Covenant program was fully initiated. Where you are wrong is in not recognizing where your conclusions begin and Paul’s words end. I doubt that, when you were a seminary professor, you would have let your students off so easy as to say "Paul says here that these things will end when the New Covenant program fully arrives". I believe that you would have told your students that they need to separate their interpretations from the text and deal honestly with what Paul has actually said. I think that you may have even taken the time to explain why it is important to realize what is written and what is deduced. You just seem like you would have been the type of professor that insisted such integrity in interpretation (not that the deduction is necessarily wrong, but at least recognizing from whence it came).
Leon Morris suggested that Paul is speaking of the temporary nature of these gifts, but that love will endure. I believe that John Gill (who also holds that these gifts have ceased) viewed this passage correctly and honestly:
“and then that which is in part, shall be done away:
the imperfection of knowledge shall be removed; the imperfect manner of communicating knowledge, and of receiving and acquiring it, will cease: thus the apostle explains what he means by the cessation and failing of knowledge, and prophecy; not that knowledge itself will be no more, and a state of ignorance and darkness succeed; but imperfect knowledge will vanish away, or rather will be perfected, or be swallowed up in perfect knowledge; the imperfection of it will disappear; and it will be no more taught and received in part; the whole of truth will be clearly known.”
I don't take exception to your position. I do take exception to insulting others who do not read into a text the same opinions that you hold. I take exception to the implication that what is lacking is understanding. I understand what you are saying. I understand what and why you substitute "that which is perfect" with "the New Covenant program". But I disagree that this is what Paul actually says, and indeed that this is what Paul implies (even this is when these things cease).