"Verses 6 and 7 occupy a pivotal position in the letter. They serve as the basis of Paul's interaction with the Colossian heresy (vv 8-23) having summarized much of what has already been written in the epistle."103
2:6 In particular, Paul encouraged his readers to continue following Christ in harmony with the sound teaching that had resulted in their conversion.104His point was not that as the Colossians had become Christians by faith in Christ they should continue to walk by faith. This is clear from Paul's word translated "received."It usually refers to the reception of truth through transmission (cf. 4:6; 1 Cor. 11:23; 15:1, 3; Gal. 1:9, 12). It is also clear from the expression "as you were instructed"(v. 7) and the context (vv. 4-5, 8).
"Christ Jesus the Lord"counteracts three false conceptions of the Savior. These are His deity ("Christ") that Judaism denied, His humanity ("Jesus") that Docetists denied, and His sovereignty ("Lord") that many varieties of false teaching denied.
"Since the basic sense of kurios["lord"] is that of superior to inferior (master to slave; king to subject; god to worshiper), with formally acknowledged rights of the former to command or dispose of the latter (see also 3:22 and 4:1), all would have recognized that acceptance of Christ Jesus as Lord included within it submission of the believer to this Christ and unconditional readiness to act in obedience to him."105
2:7 Four characteristics describe the healthy Christian in this verse. First, he or she stands firmly rooted as a tree, "born again."Second, he or she is being built up as a building (cf. 1 Pet. 2:2). Third, he or she is becoming increasingly stable in the faith. Fourth, he or she demonstrates the fruit of thankfulness constantly. Four participles in the Greek text describe these characteristics. The first is in the perfect tense indicating the initial reception of new life. The last three are in the present tense revealing the ways in which new life should continually express itself.
"The present passage may imply that those who lack a deep sense of thankfulness to God are especially vulnerable to doubt and spiritual delusion."106
"A thankful spirit is a mark of Christian maturity. When a believer is abounding in thanksgiving, he is really making progress!"107
"As in Rom. 1:16-17 and Gal. 1:11-12, these two verses provide a brief summary sentence of the main point to be made in the body of the letter, to serve as a heading to what follows . . ."108
