Yes, but not because your obedience makes you righteous, and therefore, qualified to enter the kingdom of God, but because a turning away from God in disobedience is the sign of unbelief.
It is your unbelief that will keep you out of the kingdom, not your sinning. For the sinning of the believing person is continually cleansed away by the intercessory ministry and sacrifice of Christ they believe and trust in (Romans 8:34, Hebrews 7:25). And so it is through our believing that our sinless, perfect status before God is maintained, not our works.
Hmmm.
I'm not sure ONLY BELIEVING is sufficient after we're born again.
The NT does state that WE ARE to do good deeds,,,,there's no maybe about it.
For whatever reason you want to understand this necessity,,,nonetheless, it IS a necessity.
Galatians 6:9 ESV / 1,259 helpful votes
And let us not grow weary of doing good, for in due season we will reap, if we do not give up.
And whatever you do, in word or deed, do everything in the name of the Lord Jesus, giving thanks to God the Father through him.
James 4:17 ESV / 951 helpful votes
So whoever knows the right thing to do and fails to do it, for him it is sin.
James 2:26 ESV / 919 helpful votes
For as the body apart from the spirit is dead, so also faith apart from works is dead.
“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. On that day many will say to me, ‘Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many mighty works in your name?’ And then will I declare to them, ‘I never knew you; depart from me, you workers of lawlessness.’
And let us consider how to stir up one another to love and good works,
James 1:27 ESV / 732 helpful votes
Religion that is pure and undefiled before God the Father is this: to visit orphans and widows in their affliction, and to keep oneself unstained from the world.
In the above source, there's a whole page of verses.
I do believe we are REQUIRED to do good deeds.
As per James, Paul, and even Jesus!