6 Therefore, as you received Christ Jesus the Lord, so walk in him, 7 rooted and built up in him and established in the faith, just as you were taught, abounding in thanksgiving.
“Walk,” meaning to conform one’s life in a certain direction or to follow a particular pattern. It is such as simple exhortation… walk. Throughout Scripture, God’s people are instructed to “walk.” Abraham is told to walk to a land God would show him. Moses and the Hebrews are forced to walk around in the desert. Joshua is told to walk around a city. The Kings are told to walk in the statutes that God has given them. The prophets call the people to return to walking in the way God has given them. Jesus calls his disciple to walk after him. And the Apostles call Christians to “walk in [Christ]” (v.6). The term “walk” is used 96 times in the New Testament and is commonly used to refer to a general pattern of life.
Paul exhorts Christians to live a lifestyle that is consistent with Christianity. Exhortations are instructions that are based on previously established facts or commonly held beliefs. Paul’s exhortations to “walk” are based on the reality of the indwelling Spirit of Christ in the heart of all who believe. Because Christians have trusted Christ and are subsequently changed by that faith, Paul says, “walk in Him.” In other words: live a lifestyle consistent with that claim of faith.
The life of a believer is one that is “rooted and built up in Him and established in the faith…” and is marked by an abundant and prolific “thanksgiving” (v.7). First, the believer’s faith is “rooted” in Christ. Consider for a moment what it means to be “rooted.” This means that the source of nourishment and strength are drawn from a foundational relationship with Jesus Christ. For Christians the source of life in Christ. As it is with roots, so it is with Christians. The deeper the roots go into the foundation, the stronger the life of the plant. Further, any progress in growth as a Christian also results from Christ. Alongside being “rooted,” Christians are also “built up in [Christ].” Christians derive their strength and encouragement from Christ and knowing Him. He is the source of encouragement and strength.
Another defining Characteristic of those who “walk in Him” is that they are “established in the faith.” Christians have a strong faith. It is strong because it is not dependent on the work of the person, it is dependent on Christ and what He has already accomplished. Paul uses the term “faith” here to describe the collected system of beliefs and doctrines common to Christians. These doctrinal truths that Paul asserts the Colossians are established in are basic to all Christianity. The collected truths that Jesus Christ die for sins, has risen from the dead, ascended into heaven, and is returning one day to reclaim all creation for Himself, is made strong in the heart of a believer precisely because Christ’s Spirit has indwelt those who believe in Him (see further 1 John 2:27). Those who “walk in Him” are marked by a faith that is strong and growing.
Notice that this exhortation to “walk in Him” is followed by descriptors that are past tense. The characteristics of “rooted,” “built up,” and “established” are all traits that already exist in the life of one who is called to “walk.” The faith of a believer is the foundation and strength that one depends on in order to walk in the way of Jesus. It is because of the firm relationship and growing knowledge of Him that believers are able to “walk.”
Believers are marked by gratitude. Gratitude stems from an accurate understanding of God’s work with the heart. True believers recognize the worth they bring to the table of salvation. They know all too well what wretched beings they were before Christ. They are aware of the depth of their sin and disgrace and as a result. They are aware of the death that once claimed their souls. Christians know that they have been redeemed by mercy and not personal or corporate merit. It is not the merit of the Christian or the community that redeems the believer. It is the life and sacrifice and of merit of Jesus Christ. That is the motive for thanksgiving. Thanksgiving marks the heart of a believer. Imagine what this world would look like if every person who claimed the name of Christ were identified as incredibly grateful people who look and live like Jesus. Would it not be a sight to behold!?