The Bible says
Does the Bible say that Christians can stop sinning? See for yourself, and I will show you many more verses from the New Testament.
1 John 5:18
We know that whoever is born of God does not sin; but he who has been born of God keeps himself, and the wicked one does not touch him. NKJV
1 Peter 4:1-2
Therefore, since Christ suffered for us in the flesh, arm yourselves also with the same mind, for he who has suffered in the flesh has ceased from sin,  that he no longer should live the rest of his time in the flesh for the lusts of men, but for the will of God. NKJV
For sin shall not have dominion over you, for you are not under law but under grace. NKJV
But God be thanked that though you were slaves of sin, yet you obeyed from the heart that form of doctrine to which you were delivered.  And having been set free from sin, you became slaves of righteousness. NKJV
If the Word of God says that we can stop sinning, why do thousands of preachers today say that we can’t stop? How can so many people be wrong?
That’s their testimony, and so that is what they are receiving (Romans 10:6-8). Our words not only have the power of life and death (Proverbs 18:21), but they control the course of our bodies and can set our whole life on fire (James 3:5-6).
Get this! According to Jesus Christ, whatever scripture that we do not believe will not remain on the inside of us (John 5:38). So if we do not believe the verses written in our own Bibles, they will not remain in us and then it will be very easy for us to speak against them, and that’s what millions of well meaning Christians do.
We were clearly told to recon ourselves as dead to sin and alive to God (Romans 6:11-12) as a part of the process to stop sin from reigning in our mortal bodies, but that doesn’t get the crowd going these days. The bottom line is that if we tell people what they want to hear, then we will have lots of likes and lots of money (2 Timothy 4:3-4), but those who say Christians cannot stop sinning will never overcome the Devil.
And they overcame him by the blood of the Lamb and by the word of their testimony, and they did not love their lives to the death. NKJV
Think about this. No one believes what they speak against. Is there anyone left on earth that proclaims “The earth is flat!” Why not? Everyone accepts the evidence that it is round, even though most of us have not been around the world to prove it.
In the same way, there shouldn’t be a Christian left who says that we cannot stop sinning, unless of course they do not believe the evidence found in the their Bible. There’s the problem, they do not believe their Bible, and everyone who does not believe will be condemned.
2 Thessalonians 2:11-12
And for this reason God will send them strong delusion, that they should believe the lie,  that they all may be condemned who did not believe the truth but had pleasure in unrighteousness. NKJV
And He said to them, “Go into all the world and preach the gospel to every creature.  He who believes and is baptized will be saved; but he who does not believe will be condemned. NKJV
According to Jesus Christ, we must hear the Word of God and believe God in order to have eternal life. Know that for yourself!
“Most assuredly, I say to you, he who hears My word and believes in Him who sent Me has everlasting life, and shall not come into judgment, but has passed from death into life. NKJV