YOU are the cause of the challenge!

In general...

Once you proclaim something in public, such as "I will do OOOO.", then surely someone will come and ask you, "Can you really do what you said you would do?"
Of course you will answer, "Yes, I said I would do it, so I will do it."

Then surely he will say, "Ok, then how about this case, how about that case?" I mean, "What if this happens, will you still do what you said you would do?" "What if that happens, will you still do what you said you would do?"
Thus, he will not just ask you verbally, but he will put you in the situation with such questions
just as in the case of Job in the Bible

And I believe this is why so many challenging things are happening in our lives
It is because you "proclaimed" --or, you said that you will do something. (which he may not like to see happening for some reason--however, he longs to see it happening deep inside in fact...)

Therefore, as long as you said it, the only option for you seems to be, "just stick to what you said and never give up, nor, change your mind." and in the process you will be proving yourself.

If you don't change, then there will be a time your opponent has to change and admit, "I like what you do. (and thank God for you!)"