Isaiah 1:18; Come now, and let us reason together, says the Lord: though your sins may be as scarlet, they shall be as white as snow; though they be red as crimson, they shall be as wool. But if you refuse and rebel, you shall be devoured with the sword; for the mouth of the lord has spoken.
Man has the nature of rebelling, we could attribute to the inherit nature of sin that has been passed down from the Adamites time till now however, it is important that when we loss our we find out way back.
Losing a battle does not mean you have lost the war and falling does not mean one has reach their end, well you only loss when you continue to stay down. So when you fall down you must rise and you must rise higher than you were, stronger and tougher learning from you mistakes.
The Lord expects this from us and so he is always willing to accept us back when we trip and fall, because we are supposed to come back stronger than we were. So when you backslide, when the devil deceive and you fall for his tricks and temptations, do not let it go any further once your mind is opened to this.
Repent of your sins, ask for forgiveness and come back to the Lord and he will gladly accept you and give you another clean slate to start up with.