Resurrection is the awakening of our spirits without any ties to our current bodily needs and we will never die again.

If we awake in God's presence then we would have been saved through Jesus Christ.

The simple answer is that all things are God,s but there are responsibilities for us to pay our share of social costs from our current resources in an accepted way.

The question of taxes of the Jews paying  to the Romans was a painful situation for them.

To refuse to pay taxes would be considered a rebellion so the answer from Jesus was correct.