Do you understand the word “shall” ? do you think there is ambiguity there?
Yes, I understand the word. It's meaning, however, depends upon its context. When Jesus said, "I am the door: by me if any man enter in, he shall be saved, and shall go in and out, and find pasture." (John 10:9), the way it is used in the Greek indicates a surety such as "will be", "will go". I know there are some who hedge their bets, in a sense, and try to interpret verses like these to say "shall be" can also imply "shall be, but might not be" or that it says "may be saved" but "might not be" as well. I don't get that sense from these passages because I know there ARE other verses that plainly say "HAS" and "WILL" and they, in turn, make the doubtful verses not ambiguous at all.