When we accept this idea of conditional forgiveness/forgiveness on the installment plan; a little forgiveness here, a little forgiveness there, the need for new forgiveness for new sin, that is the atonement program of Israel, not the reconciliation program of the body of Christ.
We need to understand that forgiveness was all upfront and all-inclusive. It took place when Christ said that it is finished. God knows about it, and he wants us “humankind” to know about it, because they think he is alienated from them, in his mind, when they sin. He put all that sin on his son long before those people were ever born, and now he wants them to accept that reconciliation.
God is not holding or charging that sin to their account. If you want God to view you today, you got to be in his son. How can you get into his son, and have all of his righteousness freely imputed to your account? By simply taking God at his word, concerning what his son accomplished for you.
It is as simple as that. When God says he is satisfied with what Christ did for your sins, when Christ died for them, all your sins were all future. It is a son issue on your part, not a sin issue, in order to receive the gift of salivation.