I’m pretty much done here. Jesus would have to be incarnated in order to provide solutions to our two most important problems: 1. our evil (which His sacrifice paid for vicariously). 2. our lack of righteousness (which His holy life covered us with). These solutions leave nothing left to “do” from a biblicist’s point of view.
I think you have made your point that you believe Jesus commands believing Gentiles to “do” things far beyond what I find in the Scriptures. Well, then, whatever you do, don’t become an astronaut...unless you can take with you the entourage that is required to fulfill your “do” list.
From that I have become comfortable that in Paul's view the good news starts with the incarnation and that he did not think the incarnation was simply necessary to get to Jesus's holy life and then to the cross, but that the incarnation itself is a "generous act of our Lord Jesus Christ", "that though he was rich, yet for your sakes he became poor," and that generous act in which Jesus "emptied himself, taking the form of a slave, being born in human likeness" is good news indeed.
Further, I learned that specifically within Paul's exhortations to the gentiles I can find support for my belief that a full faith which is a gift of God's grace is not just in the mind but in the soul and the body too, "For we are God’s handiwork, created in Christ Jesus to do good works, which God prepared in advance for us to do." This helped me to understand Paul more squarely within the tradition laid out in Mark "Love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength (ischus)."