I am not sure if 1 or 2 or 3 unrepented sins leads you to hell. But lets say, there is a perfect Christian who one day makes 1 or 2 or 3 sins, like small lies and sexual thoughts and dies 1 hour after the sins without having the chance to repent. A monk is telling me that a sinner must confess his/her sins to a priest in order to repent.
Anyway, the perfect Christian makes 1 or 2 or 3 sins in one day and neglects to repent either way and dies instantly that day. Is he going to heaven or hell?
A very sinful person who lives whole life in sin, in his last days, becomes Christian and confesses his sins. So, he is going to heaven just, because he was lucky enought to be alive and repent in his last days after living a sinful life? what about the perfect Christian who died instantly?
(Rom 8:1)
There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
(Rom 8:2) For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.
(Rom 8:3) For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
(Rom 8:4) That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.
(Rom 8:5) For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit.
(Rom 8:6)
For to be carnally minded is death; but to be spiritually minded is life and peace.
(Rom 8:7) Because the carnal mind is enmity against God: for it is not subject to the law of God, neither indeed can be.
(Rom 8:8) So then they that are in the flesh cannot please God.
(Rom 8:9) But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.
(Rom 8:10) And if Christ be in you, the body is dead because of sin; but the Spirit is life because of righteousness.
(Rom 8:11) But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you.
(Rom 8:12) Therefore, brethren, we are debtors, not to the flesh, to live after the flesh.
(Rom 8:13) For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live.
(Rom 8:14)
For as many as are led by the Spirit of God, they are the sons of God.
Jesus paid the price for the sins of the whole world; not just the sins up to the point where He paid this price on the cross, but all sins in the future as well - for everyone who has or will be born into a flesh body. when you receive spiritual rebirth, you receive forgiveness for all your sins; past, present and future. if you refuse to receive forgiveness (whether you think you don't need it, or think you've out-sinned all forgiveness), and you never change, then you will be judged for rejecting forgiveness - in such a case, the very first sin you ever committed would be enough to land you in the lake of fire forever.
'repent' doesn't mean 'stop that sinning'; 'repent' means 'to think differently or afterwards, that is, reconsider (morally to feel compunction): - repent.'.
if you have received spiritual rebirth by receiving Jesus
as your Lord, as well as Savior, then you have repented through this 'different thinking';
and you've set your heart to be led by God through fellowship with His Holy Spirit inside of you as confirmed by His written Word (as revealed by the Holy Spirit). if you transgress God's laws after this point, these transgressions are already paid for by His blood, you have already received forgiveness for them, and changed your heart to be led by Him (repented).