If a person claims to be a believer in Christ, he has an obligation to think before he speaks and to not cast any doubt on The Word of God - the Word that gives people the information they need to avoid an eternity in hell.
There are too many people who don't know Scripture enough to be able to differentiate between "literal truth" of Scripture and "absolute truth". The person who claims the name of Christ has to ensure that he does not put enough doubt into a person's mind that they reject Christ altogether.
I understand symbolism and metaphors and all that, but the fact remains that because a principle or a commandment or a prophecy may be told in a parable, or told using symbols, does not then make the underlying truth invalid.
Christians who know Christ and who know what is at stake have a special obligation to be careful what they say.
I’m praying that the Lord bless you with understanding for your original statement in post number 5.