Grace does not allow you to disobey
Stand fast therefore in the liberty wherewith Christ hath made us free, and be not entangled again with the yoke of bondage. (Galatians 5:1)
The grace of God will never allow you to disobey the Lord. Any one saying that once you say a prayer of salvation you never need to refrain from sinning in the future, is actually deceived. I strongly exhort you to keep away from such people.
having the appearance of godliness, but denying its power. Avoid such people. (2 Timothy 3:5)
Now obedience is not the same as grace. Plus you cannot earn God’s grace. But at the same time it does not mean you deliberately refuse to honour the Lord Jesus by disobeying. Like it or not, those who don’t do the will of God won’t enter the kingdom of heaven.
“Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but the one who does the will of my Father who is in heaven. (Matthew 7:21)