John Chrysostom
The prophet calls upon even the lifeless elements to join in lamentation over all transgressions: “marvel at this,” he proclaims, “the heavens, and tremble, and be terrified” (Jeremiah 2:12); again he states, “the sap of the grosbeam weeps; the vine aches.” While these inanimate beings weep, sigh, and rage alongside the Sovereign, you, as a being endowed with reason, fail to mourn, to admonish, or to act as a fierce guardian of divine law, yet you still engage with transgressors. How can you then hope for mercy? Indeed, God does not seek an avenger nor requires assistance; rather, He desires that you serve as His instrument in this regard.
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This is so that you might not fall into similar transgressions yourself, that through righteous indignation toward others, you may be rendered purer and reflect His love. When another commits a sin, and you pass by without offering reproof or expressing sorrow, you render your own soul more indifferent and susceptible to sin, often leading you to commit the same wrongs. Furthermore, by your untimely leniency, you inadvertently harm the other person, making it increasingly challenging for them to account for their actions in the future, while simultaneously fostering a troubling attitude of negligence in the present.