Sometimes we encounter people who give every impression that Hell will be their final abode. With bombastic, hate-filled, vulgar declarations they condemn the idea of a Creator and swim deeper into the sea of their depravity.
However, because of His love and mercy, God draws men and women while they are yet immersed in their sin. Therefore, the hardest, vilest, deadest sinner you know might be the one closest to new life in Christ.
Never assume; just keep praying.
But God, who is rich in mercy, because of his great love that he had for us, made us alive with Christ even though we were dead in trespasses. You are saved by grace! – Ephesians 2:4-5 CSB