OSAS from a Protestant view…
John 3:16 (KJV of course

) “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.”
Look, it’s in black and white. “whosoever believeth in him should not perish, but have everlasting life”. You believe in Jesus, you are “saved” and have absolute assurance you will go to heaven! God does not lie does He? No He never does. He wrote it in His Word that you ARE saved by faith alone when you believeth in Him!
Rom 3:28 “28 Therefore we conclude that a man is justified by faith without the deeds of the law.”
We are saved by “faith alone!” You see, it’s right there in black and white in His Word. Is He lieing to you? Of course not! You’re saved when you believeth in Him.
Eph 2:8-9 “8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: 9 Not of works, lest any man should boast.”
God said we are “saved” once and for all by “faith alone”! NOTHING else is required.
Don’t believe the lies inveted by the papist stooges, they had since 313 A.D. when Constantine founded the pagan church of Rome to invent lies to mislead you.
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I made the Protestant point as short and sweet as I could.
PS. I know the Protestant side is wrong, I only give it so you can see it. It is easily proven wrong if one just takes the scales off ones eyes and reads Scripture, all of it, in context and not one verse or word (out of context) means all.
By the way, not all Protestants believe in Faith Alone. Many do, but not all.