How do we best pay the Lord?
What will replace the dollar on earth?
What is the exchange medium in heaven?
We modern mortals pay with money. As you will see, there are other choices, and what we chose can make an enormous difference in our eternal destiny. Now, typically, we work for money so we can buy things and sustain out lives.
As Christians, we have the remarkable truth that salvation is a free gift because of the atonement of our Lord and Savior. Our best pay to Him in deepest gratitude is to live and share His glorious gospel message on both sides of the veil.