If a man can be saved without faith, then there is no reason for him to ever have faith.
Your Calvinistic theology has you rewriting the bible, reversing verses:
Rom 5:2 "By whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God."
One must have faith to have access to grace. You reverse this by saying man somehow has access to grace then can have faith later.
Jn 3:16 "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life."
You reverse this by saying one somehow first has everlasting life then should believe.
Jn 6:35 "And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on me shall never thirst."
You reverse this by having one for some reason to first never thirsting, then believes.
Jn 6:47 "Verily, verily, I say unto you, He that believeth on me hath everlasting life."
You have one first having everlasting life then believe.
I can post a host of more verses that put faith/belief BEFORE salvation show that Calvinism is in total opposition to biblical teachings.