For ye know the grace of our Lord Jesus Christ, that, though he was rich, yet for your sakes he became poor, that ye through his poverty might be rich. 2 Cor. 8:9.
Can you imagine, one day in heaven, your angel coming to you and saying, "How would you like to take a journey/"
And you respond, "Of course. Where are we going?"
"There's a little planet, way out on the rim of the universe, where they want to hear what it's like to have been ransomed from a lost world," your angel says. "I can't tell them. But I'll show you how to get there."
Would you be interested? The law of giving is the law of the universe. And although the doctors will be out of a job in heaven, and the funeral directors will be unemployed, and many of the other jobs we have here on this earth will be no more, the Christian witness will go on forever. Angels never felt the joy that our salvation brings. And if giving is the essence of heaven's bliss, then it wouldn't hurt to get started on it right here and now, would it?
If my primary motive in being a Christian is to try to get myself to heaven, then it is possible that I'm not a Christian at all. The one who has truly become a partaker of the spirit of Christ is more concerned about someone else's salvation than his own. Remember Judah, when he had become surety for his brother Benjamin? When he thought that Benjamin would be kept in Egypt as a slave, and thought of the grief it would bring to his father, he offered to take Benjamin's place.
Remember Moses, when he was leading the Israelites out of Egypt? God offered to destroy the ungrateful rebels, and start over again with Moses to make a great nation. Moses was willing to put his own eternal life in the balance in order to save the people he loved.
And Jesus, the greatest Giver of all, did not count heaven a place to be desired while we were lost, but came on the long, expensive journey, risking His own eternal life, in order to secure a place for us in heaven. It is His spirit of unselfish giving that was shown in Judah, in Moses, and in all haven. It is this willingness to spend and be spent for others that is our need today.