The whole matter can be summed up in terms of sowing and reaping. By God’s grace even our earthly possessions may become spiritual seed, sown on earth but producing a harvest in heaven.
How can we who are on earth, who have no access to heaven, no knowledge of where it is, have never been there; how can we store up treasure there? Wonderfully, a way has been shown us. We may sacrifice our earthly treasures and by faith use them for the Lord’s purposes. In being sacrificed, they are consumed in the same way as a seed; no man can keep the seed and have the plant that comes from it as well. The worldly minded man wishes to see an immediate reward, but the spiritually minded sows in God’s soil waiting for him to bring to life. Believers then do already have a foothold in heaven.