What does the Bible say about true belief in Jesus Christ?

Scripture emphasizes the necessity of faith in Christ for salvation and the marks of genuine belief. In Matthew 12:20, it illustrates the compassionate nature of Christ, who does not break the bruised reed or quench the smoking flax, affirming His care for even the weakest believers. This symbolizes that true belief, though it may manifest in a fragile state, is still valid and reveals the working of the Holy Spirit in a person's life.

The internal struggle that believers face, as indicated in the text, often leads to questioning one's salvation. This uncertainty is not uncommon, and it can arise when one's awareness of personal sin increases or when one's conscience becomes tender. However, the assurance of being a ‘true believer’ is not solely rooted in one's feelings or experiences but in the promise of the Spirit's work within. For those who truly believe, there is a growing confidence in knowing Jesus, akin to the Apostle Paul’s assertion, "I know in whom I have believed" (2 Timothy 1:12). True belief, therefore, is marked not by perfection but by a continual reliance on Christ’s redemptive grace.