A profound theological paradox emerges when considering how divine kindness and mercy intertwine with the strict justice of exact reward and punishment. Rather than contradicting one another, rigorous providence and divine mercy are inextricably linked. God is the ultimate provider to the world, repaying individuals for both their good and bad actions [ביאור שטיינזלץ]. Yet, a central question arises: how can exact retribution for deeds be considered an act of kindness?
The primary approach among commentators explains that this kindness is found in the limitation of punishment. God does not exact retribution for all of a person's sins in their full intensity, but only for a portion of them [רש"י]. Furthermore, God punishes only the actual physical act committed, without combining a sinful thought with the deed. Because the power of thought within a person is considered a divine spark, God forgives the thought and judges solely the physical action [אלשיך, חומת אנך]. Additionally, God judges the sinner by taking human weakness into account, rather than measuring the sin against the infinite greatness of the Creator who was offended. He also refrains from exacting punishment for the indirect consequences of sins, a strictness He does apply when rewarding the fulfillment of commandments [אלשיך].
Alternatively, the exactness of divine justice is itself a form of educational kindness. When God punishes a person precisely, measure for measure, the individual can immediately understand that their suffering is not random but a direct result of their actions, which awakens them to repent quickly [מצודת דוד, אלשיך]. This kindness is also evident in how God warns humanity in advance about the consequences of their behavior [רד"ק, אבן עזרא]. Moreover, God executes judgment personally rather than through a destructive angel, ensuring a precise, individual providence that never harms anyone without cause [אלשיך].
Divine exactness functions as kindness in the granting of rewards as well. Unlike a human king who pays an equal wage to a group of laborers, God examines the specific effort, swiftness, and joy of each individual, providing a custom reward tailored to their unique service [אלשיך]. Another aspect of this kindness is revealed in the timing of the payment. Often, God exacts payment from the righteous for their few sins in this world, such as through the suffering of exile, so that their reward in the World to Come remains complete. Conversely, He may reward the wicked for their few good deeds in this world in order to deny them eternal life [רד"ק, מאירי].
Addressing the tension between justice and mercy, some commentators suggest that even though God initially operates with strict justice, paying each person according to their deeds, ultimately His attribute of kindness is the one that prevails [רד"ק, אבן עזרא, תורה תמימה]. Finally, the harmonious balance of these traits serves to praise divine power. The very fact that God possesses the capability to repay every person according to their actions and establish true justice in the world is, in itself, a profound kindness to humanity [רש"י, מאירי].