Get a Bible that contains John 6:63
You wrote:
“Get a Bible that contains John 6:63”
Already have many that do. Don’t know of any that don’t. But I, unlike you apparently, actually understand the verse. If you’re going to say that the flesh is of no avail in anything, then you cannot be saved. Why? Because Christ became flesh - and He died in the flesh. His sacrifice of the life of His flesh is what is at the root of our salvation (Eph. 2:13—16, Hebrews 10:10). First you should look at 6:51. Then to look deeper you should compare 8:15 to 14:26.
Like most Protestants you didn’t think this through. You misunderstood the verse and made Christ’s sacrifice worthless in the process - if you actually stick to your own logic.