Such as.... Matthew 24 must all apply to the events surrounding 70 AD, OR they must all apply to the end days we are in now. NOPE. Some apply to 70 AD, but most apply to end times.
Jesus was responding to more than one question that the disciples asked him. They asked when will the temple be destoyed, which could only have one fulfillment.
And they asked what is the sign of his coming. Which coming? The coming in judgment against Jerusalem, or his coming in judgment against the world?
And they asked him what is the sign of the end of the age. Which age? The end of the age of Judah or the end of the age of the gentiles?
So it takes spiritual discernment to understand what event he is speaking about in each case.