Psalm 50:18

When thou sawest a thief, then thou consentedst with him, and hast been partaker with adulterers.

When thou sawest a thief, then thou consentedst with him,.... Or "didst run with him" {a}; joined and agreed with him in the commission of the same things; which was literally true of the Scribes and Pharisees: they devoured widows' houses, and robbed them of their substance, under a pretence of long prayers; they consented to the deeds of Barabbas, a robber, when they preferred him to Jesus Christ; and they joined with the thieves on the cross in reviling him: and, in a spiritual sense, they stole away the word of the Lord, every man from his neighbour; took away the key of knowledge from the people, and put false glosses upon the sacred writings;

and hast been a partaker with adulterers; these teachers of the law were guilty both of theft and adultery, Romans 2:21; they are called by our Lord an adulterous generation, Matthew 12:39; and they were so in a literal sense; see John 8:4; and in a figurative one, adulterating the word of God, and handling it deceitfully.

{a} wme Urt sunetrecev autw, Sept. "currebas cum eo", V. L. sic Eth. Syr. Targum, so Vatablus, Musculus, Piscator, Ainsworth.