How do we know that Christ's sacrifice was for us?

The assurance of Christ's sacrifice being for His own comes from John 10:15, where Jesus states, 'I lay down my life for the sheep.' This implies that His death was not just a general act but a specific one intended for those He foreknew and called His own. Moreover, the certainty of His sacrifice is emphasized in the statement that no man takes His life from Him; He lays it down willingly (John 10:18). This divine revelation ensures us that Christ's redemptive work applies to those whom He loves and chooses, amplifying the truth of sovereign grace in salvation.