You are describing discipleship.
Discipleship is the "following", that happens once you become a Disciple.
The "following", has to do with the behavior, but has nothing to do with the position.
In Christianity, we are become "Sons of God", not because after we do, we are willing to live the life, walk the walk, etc.
But rather HE has recreated us within his Grace to be his blood bought own, and that free of charge, free of "discipleship", free of works, free of "law", free of anything related to the idea that we are doing something for it to ither earn it or keep it.
The wisdom of Christianity is in the understanding <> the spiritual awakening to the reality that Righteousness is not something we do, but rather its something that GOD GAVE US., based on what Jesus did for us.
There are no "If we dos" related to this free Gift from God., and that is because there is nothing we could possibly do that could equal the Life of Christ or the sacrifice of Christ.
So, we need not go there to try to "keep it".
We dont keep it, we instead are given it, and once its applied its finished, just as Jesus said from the Cross.
And subsequent to this knowledge that God himself has remade us to be an eternal part of himself, we then choose wisely when as you say we choose to live for him because of what he has DONE for us., and not because of what we are trying to earn as a means to maintain what he has already given.