If we sin deliberately after receiving the …. truth, there no longer remains a sacrifice for sins. Hebrews 10:26
The Old Testament makes a sharp distinction between sins committed involuntarily and those done deliberately. Old Testament believers had the “excuse” that they did not have the Holy Spirit in them to tell them what was right. Hebrews says it is extremely serious, however, when New Testament believers fall into sin. We have no “excuse,” for God Himself is at work within us, both to will and to do His pleasure (Philippians 2:13).
Alas, a born-again believer does sin occasionally, but, when this happens, he may say, as the apostle Paul said, “Now if I do what I do not want, I agree that the law is good. So then it is no longer I that do it, but sin which dwells within me” (Romans 7:16, 17).
God guarantees that no temptation will ever come our way that we cannot escape (1 Corinthians 10:13). He “always leads us in triumph” (2 Corinthians 2″14). And Jay Adams says that it is not enough to learn to cope; Christians must be overcomers.
We can’t use the excuse any more that we can’t help sinning, that it is just part of our nature. If we talk that way, we are denying the fullness of Jesus’ work at Calvary. He died to save us from guilt and to send His Holy Spirit to live in us. In the power of Christ, we must now resist sin and live for God.