Charles Spurgeon wrote: "The heart of the gospel is redemption, and the essence of redemption is the substitutionary sacrifice of Christ". Thus, both the heart and essence of our redemption is our Redeemer Jesus Christ. God demonstrates his own love toward us. Present tense. Ongoing action. It is not that God showed His love for us 2,000 years ago, which of course He did! That’s past. That’s history. That is fixed, objective, unchanging. The idea here is that God commends His love today through the past, historical, objective fact of the death of his Son for us.