How does God assure believers of their salvation?

Believers can be assured of their salvation through the promises laid out in Scripture, which point to the sufficiency of Christ’s atoning sacrifice. In Isaiah 51, God conveys His intent to comfort and assure His people by removing the cup of His fury, signifying His provision of salvation through Christ. Additionally, 1 Peter 2:9-10 reminds believers of their new identity as God’s chosen people, emphasizing that through faith in Christ, they have received mercy. Thus, salvation is anchored in the person and work of Jesus, and the Holy Spirit ensures that this assurance is effectual in the hearts of believers.