תְּאַבֵּד דֹּבְרֵי כָזָב אִישׁ דָּמִים וּמִרְמָה יְתָעֵב יְ-ה-וָ-ה, may You doom the speakers of deception; HaShem abhors a bloodthirsty and deceitful man.
One would think that HaShem despises one who speaks deception, and He would doom a bloodthirsty and deceitful man. After all, is it not worse to murder than to speak deceitfully? Yet, Dovid HaMelech teaches us here what we learn (Arachin 15b) that one who slanders kills three people, the one whom he tells, the one spoken about, and the speaker himself. Indeed, the speaker of deception dooms himself with his slander and deception. HaShem merely abhors a bloodthirsty man, as apparently it is easier to repent from the sin of murder than from the sin of slander and deception.