Charles H. Spurgeon on Psalms 119:115

Depart from me, ye workers of iniquity, etc. It is common to sin for company, and that cup usually goeth round, and is handed from one to another. It is therefore wise to quit the company which is infected by sin. It can bring thee no benefit. At least evil company will abate the good in thee. The herb of grace will never thrive in such a cold soil. How poorly doth the good corn grow which is compassed about with weeds! Cordials and restoratives will do little good to the natural body, whilst it aboundeth with ill humours. Ordinances are little effectual to souls which are distempered with such noxious inmates. It is said of the mountain Kadish, that whatsoever vine be planted near it, it causeth it to wither and die: it is exceeding rare for saints to thrive near such pull backs. It is difficult, even to a miracle, to keep God's commandments and evil company too; therefore when David would marry himself to God's commands, to love them, and live with them, for better for worse, all his days, he is forced to give a bill of divorce to wicked companions, knowing that otherwise the match could never be made: "Depart from me, ye workers of iniquity, for I will keep the commandments of my God." As if he had said, Be it known unto you, O sinners, that I am striking a hearty covenant with God's commands; I like them so well, that I am resolved to give myself up to them, and to please them well in all things, which I can never do unless ye depart; ye are like a strumpet, which will steal away the love from the true wife. I cannot, as I ought, obey my God's precepts, whilst ye abide in my presence; therefore depart from me, ye workers of iniquity, for I will keep the commandments of my God. George Swinnock.