Excess Interest in the Present Life: "A symptom...of unbelief"
It is only right that in some measure the bitter experience of sin and evil should contribute to the Christian’s desire for heaven. The attraction of heaven is in part the attraction of freedom from sin. And not a little of the contempt poured upon it, while pretending to protest against cloistered withdrawal (i.e. monaticism; crb), springs in reality from a defective perception of the seriousness of sin. Where the eye has not by divine grace been opened to the world’s wickedness, it is easy to look with disdain on the Christian’s world-shyness. But the Christian, who knows that the end of sin cannot come until the end of this world, looks at the question in a light of his own. He is fully warranted in considering ridicule of this kind part of the reproach of Christ and bearing it with joy.
Nor should we forget that an excess of interest in the present life, when shown in the name of religion, is apt in our day to be a symptom of doubt or unbelief in regard to the life to come. Still the principle remains in force, that the desirability of heaven should never possess exclusively or mainly negative significance. It is not something first brought into the religious mind through sin. The lineage and birthright of other-worldliness are of the oldest and noblest. By God himself this traveler’s unrest was implanted in the soul. Ever since the goal set by the covenant of works came within his ken (awareness; crb), man carries with him in all his converse (interaction; crb) with this world the sense of belonging to another. This is but to say that supernaturalism forms from the outset the basis of true religion in man.” – Geerhardus Vos, Grace and Glory, pp. 112, 113.