The teaching that we must add our works to the equation of salvation is a heresy that unnecessarily complicates the Gospel. In conjunction with Sola Gratia (Grace Alone) and Sola Fide (Faith Alone), we are given the truth of Solus Christus (Christ Alone). In the teaching of Christ Alone we are reminded that sinners are deserving the full wrath of God, and without the life, death and resurrection of Jesus we would stand condemn before Him.
If Jesus did live, there is no life for the people of God. If Jesus wasn't executed, there is no celebration for the people of God. If Jesus didn't rise from the grave, there is no hope in eternity for the people of God.
Solus Christus: the belief that the Christ alone has purchased forgiveness and accomplished salvation for the believer; through is life death and resurrection.
Why was this important?
There are many false gospels and religions that teach we can make ourselves right with God through means that are outside of the death and resurrection of Jesus. These false gospels lead many astray, but Solus Christus reminds us that Jesus is the way, the truth and the life. No one comes to the father except by the work of Christ at the Cross.
How does it affect us now?
In a world where information changes and is distributed, we have easy access to lies and falsehood. Standing strong on the truth of Christ alone keeps us on the narrow path of the true Good News.
We must declare that Salvation is found in the Grace of God alone, by the Faith alone in Christ alone.