am·big·u·ous
[am-big-yoo-uhs] Show IPA
adjective 1. open to or having several possible meanings or interpretations; equivocal:an ambiguous answer.
2.
Linguistics . (of an
expression) exhibiting constructional homonymity; having two or more structural descriptions, as the
sequence Flying planes can be dangerous.
3. of doubtful or
uncertain nature; difficult to
comprehend, distinguish, or classify: a rock of ambiguous character.
4. lacking clearness or definiteness; obscure; indistinct:
an ambiguous shape; an ambiguous future.
Again, you are wrong. A "yes" or a "no" answer to a yes-or-no question can't be ambiguous.
I don't need to make the case that I might not be saved, Paul makes it for me.
"For the word of the cross is folly to those who are perishing, but to us
who are being saved it is the power of God." (1Cor. 1:18)
"For we are the aroma of Christ to God among those
who are being saved and among those who are perishing, 16 to one a fragrance from death to death, to the other a fragrance from life to life." (2 Cor. 2:15-16)
"Therefore, my beloved, as you have always obeyed, so now, not only as in my presence but much more in my absence,
work out your own salvation with fear and trembling; 13 for God is at work in you, both to will and to work for his good pleasure." (Phil. 2:12)
"I pummel my body and subdue it, lest after preaching to others
I myself should be disqualified" (1 Cor. 9:27).
As these verses prove, salvation is NOT assured, so, therefore can be lost. If salvation is a PROCESS, which these verses prove it is, this process can be frustrated.
One more:
"I am not aware of anything against myself, but
I am not thereby justified [Gk.,
dedikaiomai].
It is the Lord who judges me" (1 Cor. 4:4)
Note, it is the Lord who judges him, not HIMSELF. Since my judgment BY GOD has not yet happened, I can only hope and obey. If you are JUDGING YOURSELF to be "saved" (e.g. assured of Heaven upon death), you are acting presumptuously.