Although God wants every believer to be filled with the Spirit, many Christians are not sure what this means or what it looks like. To help us understand that whatever fills us controls us, Paul cites drunkenness as a negative example of "filling" and tells us to avoid it [Ephesians 5:18-21]. Every believer is indwelt by God's Spirit, but the extent of His rule is determined by the Christian's freedom to comply.

Think of this as a voluntary choice to surrender your life to the Holy Spirit's control—in other words, to be sensitive to His leadership and guidance, obedient to His promptings, and dependent upon His strength. The evidence of the Spirit's control is revealed in a person's character. Those who have yielded their lives to Christ's leadership are continually being transformed into His likeness. The degree of surrender determines the level of transformation.