Giving Yourself up to God for Salvation

What if we could give ourselves up to God, and he could make us holy? (This idea inspired by New Wine for the End Times.) Does this make sense in MSL?

We have bodies that tempt us to sin. Also, evil spirits can tempt us to sin. We are powerless over these two things -- or at least, not too powerful. God can clothe us with bodies that don't sin. (The body is mostly the same (i.e. orthogonal to sin or holiness, so left unchanged), but the part of the brain that tempts is bypassed.) This is a useful thing. When God takes over us, we are more effective tools for him. Also evil spirits can be blocked by God.

Why doesn't God do this for all of us all the time? Wouldn't the world be a better place? It would be, in many ways. But we would lose the ability to face temptations ourselves. So we could not develop our love of God to its full (thus, necessary) extent (which comes through rejecting sins). Maybe some of us don't need to be tempted much to develop this love. But some of us do, and so we are not protected by the spirit of God all the time.

Perhaps strong love is something developed by loving against a resistance, like a temptation, and strong love makes the world a better place in a unique way. (Analogy with physical training where muscles become stronger by moving against a resistance.)

It's sometimes better to live a harder life, and sometimes better to live an easy one. The harder life teaches you to love, and the easy life gives you rest and lets you be effective. Too much rest leads to "ease" instead of engagement with reality and too much effectiveness-orientation leads to "pragmatism", where our hearts lose sight or turn away from desiring what's actually good, and from us really loving God. Difficulty tells you it's too much, but ease does not.

It's necessary on some level to give ourselves up to God, in order to be holy. Even if we can engineer human bodies that aren't prone to sinful desires (not necessarily a good idea given the above), the bodies we get in the Resurrection and in heaven will not be ones we engineer, so we will need to be the kind of people who accept new bodies from God. And an attitude of generosity toward God, and of receiving his gifts, is necessary for salvation. But holiness requires that we live our own lives sometimes, on many levels struggling with our own resources.