Christ's sacrifice is sufficient because it fully satisfies God's justice and provides redemption for His people, as confirmed in 2 Timothy 1:9.
The sufficiency of Christ's sacrifice is anchored in the theological understanding that it was not based on our works but on His grace. As Paul writes in 2 Timothy 1:9, 'who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began.' This underscores that Christ's work on the cross was predetermined and sufficient to meet the justice of God, effectively reconciling us to Him and showing that salvation is truly a gift of grace for the elect.
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