You are taking one verse from Paul’s letter and using it as a rebuttal to the Prosperity Gospel. Your writing, though well intended, is falling into the same language of these preachers. Please apply ALL of chapter 4 here, not just verse 28. Luther said we are saved by Grace alone through faith alone. Paul eludes to works, as do you. Semantics is very important here if you are supporting the Lutheran tradition. But - disclaimer - I am not a theologian. Just a humble 81 year old still active LCMS organist who is also a Lutheran PK. Not theologically schooled - just theologically experienced.