Future sins are not covered by the blood, only confession can forgive future sins
Romans 3:25, "Whom Yahweh set forth as a sacrifice of atonement by His own blood, through the faith, to declare His righteousness for the remission of sins that are past, through the forbearance of Yahweh."
None can partake of the Holy Spirit unless they have confessed the Messiah, yet they can still fall short
Hebrews 6:3-6, "If indeed Yahweh permits, we will now proceed to advanced teaching. For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and have become partakers of the Holy Spirit, And the righteous, having come to know that which is spoken by Yahweh through the Law and the Prophets, the power of Yahweh, and the world to come, If they shall fall away, it is impossible for them to be renewed to repentance again. They have rejected the Son of Yahweh, and therefore are alienated from Yahweh."
Shaul was certianly what mmost Chritians call "born again", yet he knew he could fall short if he wasnt obedient
1 Corinthians 9:24-27, "Do you not know that those who run in a race all compete, but only one receives the prize? So run your race that you may lay hold of the prize, and make it yours. And everyone who competes conducts himself temperately in all things. Now they compete to obtain a perishable crown; but we for an imperishable crown. Therefore, I do not run like a man running aimlessly; I do not fight like a man who beats the air. No, I discipline my body and bring it into subjection, so that after I have preached to others, I myself will not be disqualified."
Why would Yahshua say this if it was impossible for one to be "blotted out of the book of life?"
Revelation 3:5, "He who overcomes, the same will be clothed in white raiment; and I will not blot out his name from The Book of Life, but I will confess his name before My Father and before His malakim."
Judge nothing before the time, as we are not the judge of oue Salvation anyway
1 Corinthians 4:4-5, "For I know nothing by myself; yet by this I am not justified, for He Who judges me is Yahweh! Therefore, judge nothing before the time. Wait until Yahshua comes, Who will bring to light the things hidden in darkness, and will reveal the secret intentions of men's hearts; and then each man will receive praise from Yahweh."