Why is it important to understand prevenient grace in relation to assurance?

The concept of prevenient grace suggests that all individuals possess a measure of grace enabling them to respond to God's call, implying a universal salvific opportunity. However, this contradicts the Reformed understanding of total depravity and the need for Christ's intervention. Scriptural references such as Romans 3:10-18 affirm that none seek after God without His initiating grace. Thus, understanding prevenient grace is crucial because it shapes how we perceive the basis of salvation and assurance, reinforcing that salvation and its assurance come solely through Christ alone, as affirmed in scripture.