John 13:36-38 “Simon Peter said unto him, Lord, whither goest thou? Jesus answered him, Whither I go, thou canst not follow me now; but thou shalt follow me afterwards. Peter said unto him, Lord, why cannot I follow thee now? I will lay down my life for thy sake. Jesus answered him, Wilt thou lay down thy life for my sake? Verily, verily, I say unto thee, The cock shall not crow, till thou hast denied me thrice.”
Just as surely as Jesus knew about Peter’s sins before he committed them, He knew about all of our sins before the world began, and yet, He saved us anyway. If our sins could cause us to be lost again, God would never have bothered to save us in the first place.