Following a devastating act of betrayal, David directs a sharp rebuke at Doeg the Edomite, who had informed King Saul that Ahimelech the priest assisted David. David confronts Doeg over the immense pride he feels in his destructive actions, expressing utter astonishment that anyone could boast about committing such evil. Doeg took pride in delivering this slander to his master [מאירי], calculating that his words would strike fear into the public, preventing anyone else from supplying David with provisions and ultimately leading to his capture by Saul [מצודת דוד]. In his own mind, Doeg may have even convinced himself that revealing this secret was an act of heroism and a genuine kindness toward the king [אלשיך].
The primary approach among commentators is that David directly addresses Doeg with the title of a hero [רד״ק, מאירי]. However, there are different views regarding the exact nature of this heroism. Some view it as a biting, ironic remark. Since Doeg was considered a great scholar and a hero in Torah study, God is essentially asking him if it is fitting for someone of such spiritual stature to boast of wicked deeds [רש״י, מצודת דוד, תורה תמימה]. Others interpret the title literally, pointing to Doeg's high-ranking status as one of Saul's chief officers and herdsmen [רד״ק, ביאור שטיינזלץ]. Alternatively, it refers to a dark kind of strength, describing a person who uses his power specifically to excel at doing evil [אבן עזרא].
In stark contrast to Doeg's wickedness, David highlights God's constant kindness. Most commentators agree that this refers to the divine protection that constantly shields the persecuted, saving them from informers and those who seek their ruin [רש״י, רד״ק, מאירי, ביאור שטיינזלץ]. David makes it clear to Doeg that his plot to starve him will fail. Because God's kindness rests upon Israel throughout the entire day, even if Ahimelech had not provided bread, God would have arranged for others to show mercy and supply the necessary food [רש״י, מצודת דוד]. Therefore, rather than taking pride in harmful acts, a person should only praise the constant, surrounding kindness of God [אבן עזרא].
A completely different perspective suggests that the term often used for kindness actually denotes disgrace and shame in this context. According to this view, David challenges Doeg, asking how he can possibly boast of his evil and take pride in the profound disgrace and desecration of God's name that he caused by murdering His priests [מלבי״ם]. Another approach contrasts the supposed kindness Doeg thought he was doing for Saul with the true kindness of God. While God's anger lasts for only a brief moment each day—which is a tremendous kindness, as the world could not survive continuous divine wrath—Doeg did the exact opposite. He took his brutal anger and the slaughter of God's priests and stretched it into a relentless, cruel campaign that lasted an entire day [אלשיך].