Christ's atonement is effective only for the elect, as His sacrifice was particular and not general for all humanity.
The argument for limited atonement is grounded in the idea that Christ's death was specifically intended to redeem His people. Isaiah 53:8 states that He was stricken for 'the transgression of my people,' which shows the exclusive focus of His redemptive work. Additionally, the New Testament consistently refers to Christ saving 'His people from their sins' (Matthew 1:21). If Christ's death were for all, then theoretically, it would be ineffective for those who ultimately perish in their sins. However, because Christ successfully redeemed the elect, His atonement is fully sufficient and effective for those whom He saves.
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