[2:6] 1 tn Though the verb παρελάβετε (parelabete) does not often take a double accusative, here it seems to do so. Both τὸν Χριστὸν ᾿Ιησοῦν (ton Criston Ihsoun) and τὸν κύριον (ton kurion) are equally definite insofar as they both have an article, but both the word order and the use of “Christ Jesus” as a proper name suggest that it is the object (cf. Rom 10:9, 10). Thus Paul is affirming that the tradition that was delivered to the Colossians by Epaphras was Christ-centered and focused on him as Lord.
[2:6] 2 tn The present imperative περιπατεῖτε (peripateite) implies, in this context, a continuation of something already begun. This is evidenced by the fact that Paul has already referred to their faith as “orderly” and “firm” (2:5), despite the struggles of some of them with this deceptive heresy (cf. 2:16-23). The verb is used literally to refer to a person “walking” and is thus used metaphorically (i.e., ethically) to refer to the way a person lives his or her life.
[2:7] 4 sn The three participles rooted, built up, and firm belong together and reflect three different metaphors. The first participle “rooted” (perfect tense) indicates a settled condition on the part of the Colossian believers and refers to horticulture. The second participle “built up” (present passive) comes from the world of architecture. The third participle “firm [established]” (present passive) comes from the law courts. With these three metaphors (as well as the following comment on thankfulness) Paul explains what he means when he commands them to continue to live their lives in Christ. The use of the passive probably reflects God’s activity among them. It was he who had rooted them, had been building them up, and had established them in the faith (cf. 1 Cor 3:5-15 for the use of mixed metaphors).