Galatians 5:1: "Stand fast therefore in the liberty by which Christ has made us free, and do not be entangled again with a yoke of bondage." (NKJV).
Galatians 5:1: "It is for freedom that Christ has set us free. Stand firm, then, and do not let yourselves be burdened again by a yoke of slavery." (NIV).
This key verse is transitional, moving the letter of Galatians into a description of Christian life of liberty through the Holy Spirit, moving the emphasis from justification to sanctification. He starts from the conclusion of the last chapter: "Christ has set us FREE", and declares that He has done this, so that we might live and enjoy a life of FREEDOM. Therefore, we should refuse to allow ourselves to return to a life of slavery by embracing legalism.
First, we discuss what the Bible means by FREEDOM. It is not freedom to do whatever we want, or to sin as we please. We are not set free to sin, but we are set free from sin. Living under the flesh results in bondage. Freedom means being free to be and live as God created and intended us to be. We were made in God's image to belong to God and to be filled with God's Spirit, and to glorify God by expressing His nature and abilities.
There are 2 main aspects to our freedom: (1) Freedom from the Law, and (2) Freedom from sin and self. (1) First, Christ set us free from the external restraint and condemnation of the Law, by bearing our sin and condemnation on the Cross, and then by giving us His imputed righteousness when we believe in Him. On this basis, He justified us and set our conscience free from the guilt of sin. There is therefor no condemnation in Christ (Romans 8:1). Thus, we have been set free from the tyranny of having to keep the Law to win acceptance and favour with God, and access to God and His grace. (2) Second, Christ sets us free from the power of indwelling sin (in our flesh) and our independent self-life, by the gift of His imparted righteousness through the indwelling Holy Spirit. That is, He sets our will free from bondage to sin (the sin-nature in our flesh) - this is sanctification by the Word and by the Spirit, for where the Spirit is there is liberty (2Corinthians 3:17). He initially sanctified our spirit (set it free from sin) in the New Birth, when the Spirit came to indwell it. Now He is progressively sanctifying our soul as we walk in the Spirit, rather than in the flesh. Our justification (freedom from the Law) is the basis for our sanctification, for it gives us legal access to the grace of God in the Spirit, which sanctifies us (Romans 5:1-2, 8:1-6). Thus, in order to enjoy a life of freedom in the Spirit, our hearts must first be established in our justification by grace through faith, which is why Paul first of all emphasised this truth in Galatians 1-4, before moving on to describe our new life in the Spirit (Galatians 5-6).