3 Bible Verses about Life Being Temporary

So, we do not look at the things which can be seen, but at what cannot be seen, for the things which can be seen are [only] temporary, but the things which cannot be seen are never ending.

For we know that if our earthly "house" [i.e., our physical body] which is like a tent, is torn down, we have [the promise of] a building from God, a never ending "house" in heaven that is not made by human hands.

But I consider it the right thing to do, as long as I am in this "tent" [Note: This is an allusion to his still being alive], to stir up your memory [of these things], knowing that [I will] soon put off my "tent" [i.e., I will soon die], even as our Lord Jesus Christ made clear to me.