I can turn my back and stop walking by the Spirit - letting the Spirit guide me . . . does that "unsave" me? See - I have never stopped loving God but I have at times walked away. During that time - did God remove his holy Spirit from me, stop loving me or did he wait patiently for me to turn around? I know the answer . . . do you? I thank my God that He was there waiting for me each time - I just ask for His loving forgiveness and there He was. Sorta reminds me of the prodigal son.
If there are sins that we forget to ask forgiveness - as long as my foundation is Christ, I will still be saved:
2 Cor. 5:10 For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done, whether it be good or bad.
1 Cor. 3:12-15 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble; Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is. If any man's work abide which he hath built thereupon, he shall receive a reward. If any man's work shall be burned, he shall suffer loss: but he himself shall be saved: yet so as by fire.
I relate the gold, silver, precious stones are the word of God and all works done in our body that are good, for those metals will not burn. The "worldly" things are wood, hay, stubble, works done in our body that are bad for they will burn. I may suffer loss of reward but I am saved.
No one is condoning sin, nor not asking forgiveness when we mess up - we are saying that no matter what we are God's child - born of incorruptible seed by the word of God which liveth and abideth for ever. It is Christ's death and resurrection that has redeemed us, made us righteous, that has sanctified and justified us, - nothing else.
God's grace and mercy are not forced upon us they are freely given through our faith in his Son.