Charles H. Spurgeon on Psalms 41:8

An evil disease, etc. What is here meant by (leylb-rkd) is matter of some difficulty. The ancient interpreters generally render it a perverse or mischievous, or wicked word; the Chaldee, a perverse word; the Syriac, a word of iniquity; the LXX logon paranomon; the Latin, iniquum verbum, a wicked word; the Arabic, words contrary to the law. And so in all probability it is set to signify a great slander, or calumny —that as "men of Belial" are slanderous persons, so the speech of Belial shall signify a slanderous speech. And this is said to "cleave" to him on whom it is fastened, it being the nature of calumnies, when strongly affixed on any, to cleave fast, and leave some evil mark behind them. Henry Hammond.