It's not a case of "letting God". He doesn't need our permission to be God or to bless us. When I was conceived and given physical life, it was not a case of me "letting God" give me life. Much more so with spiritual life. It's a case of Jesus as the Savior. If He is the Savior, then I'm not. You're not. It's just that simple. It's just not complicated.
Now, one might say, "Jesus IS the Savior..... BUT you gotta....." The "BUT you gotta" cancels the "Jesus is the Savior." Because if YOU must jump through hoops A, B and/or C in order to enter heaven, then YOU sufficiently jumping through those hoops is why you are saved. It means you are the Savior, it means YOUR works is why you are saved. And it means that if Jesus has a role (and you didn't mention Him), then it's not the Savior. And Lamm and others asking what IS His role is necessary.... is He the Enabler? The Doorman? The Possibility-Maker? What? And if Jesus is PART Savior and you PART Savior then Lamm again is right to ask you what percent is Jesus and what percent is self? (and it becomes deceptive to call Jesus THE Savior if He's only PART Savior, A Savior)
But He never says our repenting is what saves us, what causes faith and life to spring in us.
And again, He doesn't say to have remorse (being sad for our sins and admitting them), He says repent. Repenting requires faith since repenting is done to GOD and includes seeking God's mercy. The dead/faithless/unbelieving/denier of God does not repent to God (he doesns't believe in God) and doesn't seek God's mercy (he doesn't believe in God's mercy). Repentance is not the cause of our salvation (thus no need for Jesus or to even mention Him - your act of repentance saves, not Jesus' Cross and Empty Tomb), nor is repentance even something an unbeliever can or will do (even animals can feel remorse, but only those with FAITH and LIFE can repent).
How does one who is spiritually DEAD do something spiritual?
NO ONE has EVER said that repentance isn't necessary. It is the position of some here that this act of a believer, this act of faith is NOT what creates faith and life; that we do not save ourselves by performing this good work making Jesus irrelevant. Repentance is part of Sanctification (what a BELIEVER does, what one who is ALIVE does), it's not a good work that causes faith and life, that results in our own salvation making Jesus not the Savior but rather self.
I hope you trust in the one-and-only, all sufficient SAVIOR too - the One on the Cross, not the one you see in the mirror.
And if you trust, it's because God gave you that. "The free gift of God.... lest any should boast"
Friend, you may think this irrelevant. But the entirety of Christianity rises or falls over this. The keystone of Christianity is that Jesus IS THE (only, all-sufficient) Savior. That we need to be SAVED (not helped) and God has supplied that SAVIOR - Jesus Christ. If that is in any way, to any degree compromise or to the slightest degree denied - Christianity crashes to the ground and we join with modern Judaism, Islam and some forms of Hinduism in their view of soteriology. The reason some take this very seriously is that Christianity does, it's Christianity itself at stake. Now, as several here have said, YES (absolutely!) there are mysteries in all this.... we don't know how God "cranks out" all this, how God GIVES life/faith/salvation.... but this we MUST proclaim as clearly and undiminished as possible: Jesus IS the Savior - no if, ands and buts about it. We are saved entirely, wholly by God's act of pure GRACE in Christ - His unconditional (no "buts") love, favor, blessing and "free gift." Christianity stands on THAT point, diminish that in the slightest degree.... add some "if's" and "buts" - and Christianity crashes to the ground. Lift high the Cross, not the mirror image of yourself. In justification, it's all Christ, it's not at all you.
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