How do we know that believers are transformed in Christ?

The psalmist explains that those who are 'planted in the house of the Lord' will flourish in his courts. This illustration of being transplanted emphasizes that believers do not plant themselves but are placed by the Master Gardener. The implication here is that prior to being planted in Christ, we were in a different condition—unconcerned and distant from the Lord. Being planted signifies a transformation, an act of God's grace, where we are nurtured and provided for, resulting in spiritual growth and fruitfulness in our lives.