Is Our Knowledge Definite?
Yes but we cannot know God’s intentions. So to claim truth or falsehood on what he has given to us would both ways be speculative
We can rely on God more than any one else. He has no reason to tell a lie. What we know from Him is news, not speculation, though we can’t verify it either .
I am not totally clear about your argument Shoaib. Still I think the truth is the truth Allah told us is the truth which is within the limits of our 5 senses and limits of our knowledge. For example, this whole universe may be like a holographic reality created by Allah, but what does it matter to us. The truth is that based on our knowledge and 5 senses, it is real. So if Allah tells us it is real, it is real and a truth from our perspective and limit of knowkedge. If he would have told reality from his perspective and knowledge, we may not have understood and it may have sounded more untrue. Although I think this universe is fake from the perspective of Allah as something that is not permanent or dies, can’t be real. Also our knowledge is definitely not definite!
It is an absolute truth for us- but our absolute truth is not absolute in metaphysical terms. So we may actually be being lied to. That’s the issue
Why are your 5 senses evidence for the ultimate metaphysical truth? You do not have the capacity- that is the problem- we have no way to know.