How do we know the doctrine of limited atonement is true?

Limited atonement, a core tenet of Reformed theology, posits that Christ died specifically for the elect, securing their salvation. This teaching can be understood through various Scripture passages such as Romans 8:28-30, which highlights God's divine purpose in predestination, and 1 Peter 1:2, where believers are referred to as the elect. Historically, this doctrine has provided assurance that Christ's atonement was sufficient and effective for those whom God has chosen, affirming that it is not merely a potential salvation but a definite one, fulfilling God's covenant promises. It contrasts sharply with Arminian views that suggest a universal atonement that offers potential salvation to all but is ineffective without individual faith.