Do no iniquity; or, are not workers of iniquity, i.e. do not knowingly, and resolvedly, and industriously, and customarily continue in sinful courses. So this phrase is understood Job_31:3 34:8 Psa_5:5 6:8 125:5 Pro_10:29Luk_13:27; otherwise there is not a just man upon earth that sinneth not, Ecc_7:20.
They walk: this is their constant practice, and the general course of their lives, which is commonly signified by walking, as Psa_1:1, and every where.
In his ways; in the paths which God hath prescribed to them.