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this is good sister, you are actually thinking about your salvation.....if you still do not see exactly ask God and He will show you,,,believe me,,,trust in Him
After we are saved, I believe, we all continue to sin. We are all human and sin is inevitable. The difference is that we recognize our sin and are sorry for it. And we try as hard as we can not to commit that sin again.
But even then, we may fail because temptation is always with us. The devil never gives up without a fight.
This discussion sort of reminds me of a bumper sticker which made the rounds awhile back. "Christian aren't perfect, just forgiven."