Righteous behavior is not automatic. Here Paul talking to believers instructs them to do something to bring it about: Reckon yourself dead to sin, but alive to God. Do not let sin reign in you. Present your members as instruments of righteousness to God.
Romans 6:10 For the death that He died, He died to sin once for all; but the life that He lives, He lives to God. 11Likewise you also, reckon yourselves to be dead indeed to sin, but alive to God in Christ Jesus our Lord. 12Therefore do not let sin reign in your mortal body, that you should obey it in its lusts. 13And do not present your members as instruments of unrighteousness to sin, but present yourselves to God as being alive from the dead, and your members as instruments of righteousness to God. 14For sin shall not have dominion over you, for you are not under law but under grace.
Yes.
Paul makes clear that after we have been saved, there is a continuing conflict between our wanting to walk in the flesh, (that wants us to live in sin)- and our desire to walk after the Holy Spirit that now dwells in us - and Paul warns that choosing to live in sins (works of the flesh), will keep us out of heaven:
Gal 5:16 ThisI say then, Walk in the Spirit, and ye shall not fulfil the lust of the flesh.
Gal 5:17 For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would.
Gal 5:18 But IF ye be led of the Spirit, ye are not under the law.
Gal 5:19 Now the WORKS OF THE FLESH are manifest, which are these;Adultery, fornication, uncleanness, lasciviousness,
Gal 5:20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
Gal 5:21 Envyings, murders, drunkenness, revellings, and such like: of the which I tell YOU again, as I have also told youin time past, that they which DO such things shall NOT inherit the kingdom of God.
Paul warns us over and over, that if we believers choose to walk after the flesh, we will die spiritually - but if we choose to walk after the spirit, we will have everlasting life:
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 isDEATH, but to be spiritually minded isLIFE and peace.
Rom 8:7 Because the carnal mind isENMITY 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.
Verse 8:7 above, having a carnal mind is ENMITY against God, meaning you actually become Gods ENEMY.
Will God let His enemies into heaven?
Jas 4:4 Ye adulterers and adulteresses, know ye not that the friendship of the world is ENMITY with God? whosoever therefore will be a FRIEND OF THE WORLD is the ENEMY of God.
The verse above says sexual sins and being worldly, makes you Gods ENEMY.
Will God welcome His enemies into heaven?
We are expected and required as believers, to live the most sinless life we can, and to repent when we know we’ve sinned.
Scripture clearly shows that continuing to remain in Christ is conditional on us 1) continuing to walk in the light, as He is in the light, and 2) continuing to walk after the spirit, instead of after the flesh.
In the two verses below, I put in parentheses the conditional part of these scriptures that are always left out by hyper-grace, OSAS teachers.
1Jn 1:7 But (IF we walk in the light, as he is in the light), we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
The blood of Jesus cleansing the believer is conditional on their choosing to continue to walk in the light, as He is in the light.
Next:
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).
Having no condemnation, and remaining in Christ, is conditional upon continuing to walk after the Spirit, and not after the flesh.
And Paul warns us against being deceived about living in sin as a believer, when he wrote:
Gal 6:7 Be Not DECEIVED ; God is not mocked: for whatsoever a man SOWETH,that shall he also REAP.
Gal 6:8 For he that soweth to his flesh shall of the flesh reap corruption; BUT he that soweth to the Spirit shall of the Spirit reap life everlasting
You reap everlasting life only if you sow to the spirit (walk after the Spirit, Romans 8:1) , but reap spiritual death if you sow to your flesh.
When we do occasionally sin, we must confess it, for God to forgive it. 1 John 1:9.