How do we know the certainty of our salvation?

The certainty of our salvation is not based on our own understanding or works but is a divine revelation through the Holy Spirit. When Christ is revealed to us, we see our true condition as sinners in need of grace, and we come to know that our faith and repentance are gifts from God. This understanding comes to us from the Holy One, who teaches us the truth of the Gospel and assures us of our salvation. It is by being taught of God that we truly grasp the implications of Christ’s sacrifice and recognize that our salvation is entirely by grace through faith.