| Barnes' Notes on the Bible Wickedness is in the midst thereof - That is, the wickedness connected with rebellion and revolt. Deceit and guile depart not from her streets - They are everywhere. They are found in every street and alley. They pervade all classes of the people. The word rendered "deceit" means rather "oppression." This was connected with "guile," or with "deceit." That is, wrong would be everywhere committed, and the perpetration of those wrongs would be connected with false representations, and false pretences - a state of things that might be expected in the unnatural rebellion under Absalom.
Gill's Exposition of the Entire BibleWickedness is in the midst thereof,.... All manner of wickedness; abominable wickedness; wickedness as arrived to its highest pitch, and as having filled up its measure; see Ezekiel 9:4; deceit and guile depart not from her streets; where truth was fallen, and equity could not enter, Isaiah 59:14; for these are contrary the one to the other, and are incompatible; where the one prevails, the other must give way. This whole account shows the aboundings of sin in Jerusalem at this time, and that it was openly and publicly committed, and contains so many reasons of the imprecations in Psalm 55:9.
Geneva Study BibleWickedness is in the midst thereof: deceit and guile depart not from her streets.
Wesley's Notes 55:11 Streets - The places of buying and selling, and of public commerce.
Jamieson-Fausset-Brown Bible Commentary11. Wickedness-literally, "Mischief," evils resulting from others (Ps 5:9; 52:2, 7). streets-or literally, "wide places," markets, courts of justice, and any public place.
Matthew Henry's Concise Commentary55:9-15 No wickedness so distresses the believer, as that which he witnesses in those who profess to be of the church of God. Let us not be surprised at the corruptions and disorders of the church on earth, but long to see the New Jerusalem. He complains of one that had been very industrious against him. God often destroys the enemies of the church by dividing them. And an interest divided against itself cannot long stand. The true Christian must expect trials from professed friends, from those with whom he has been united; this will be very painful; but by looking unto Jesus we shall be enabled to bear it. Christ was betrayed by a companion, a disciple, an apostle, who resembled Ahithophel in his crimes and doom. Both were speedily overtaken by Divine vengeance. And this prayer is a prophecy of the utter, the everlasting ruin, of all who oppose and rebel against the Messiah. | 
