When thou sawest a thief, &c.— In this and the two following verses are represented the notorious vices of the synagogue, which was extremely corrupt in the time of Christ. Mudge renders the latter clause of the 19th verse, thy tongue addeth deceit to deceit; and the 20th verse, Thou art continually speaking against thy brother; placing a stumbling-block before the son of thy mother.
Related Commentaries of Psalms 50:18
Psalms 50:18
18 When thou sawest a thief, then thou consentedst with him, and hast been partaker with adulterers.