The person who presumes upon God’s kindness and patience, while continuing in stubbornness and an unrepentant heart, is simply storing up wrath for himself. To stubbornly refuse God’s gracious pardon through Jesus Christ is the worst sin of all. To do so is to greatly magnify one’s guilt by rejecting God’s goodness, presuming upon His kindness, abusing His mercy, ignoring His grace, and spurning His love. The person who does that increases the severity of God’s wrath upon him in the day of judgment.
Yet, in the meantime God’s judgment falls upon people from time-to-time to serve as a reminder that there are consequences to sin. Otherwise, we would go on blissfully presuming upon His grace. The apostle Paul soberly reminded the Corinthian believers of this fact in I Corinthians 10:1-11, and ended the discourse by saying, “Now these things happened to them as an example, and they were written for our instruction.”