Does any church denomination believe it possible to go one moment without sinning? In looking at the opposite of this question posted here, I realized it seems better to raise this question in the reverse.

Assuming the doctrine of original sin, and God's work of the holy Spirit in a believer, can a believer ever do something where the motive becomes sinless? This would assume that the motive could not be improved upon any moral ground but was perfect and 100% pure.  In this sense I guess that one idea, or one thought, or act, would be no less pure then our acts and thoughts in heaven?  Maybe it means it would be as pure as Christ's thoughts himself? Is this possible, or impossible? Does any church body believe in such perfection for at least one moment.

Note: My own church tradition under Luther, Calvin, St, Augustine, etc. does not believe this is possible, but am curious if any other church does.
Most Wesleyan/Holiness denominations teach that it is at least theoretically possible. This would include Methodists, Wesleyans, Nazarenes, and the Salvation Army, as well as most churches that have &quot;holiness&quot; in their name.
This doctrine is known as Christian Perfection or Entire Sanctification (depending on the denomination) and was outlined by John Wesley in a sermon titled Christian Perfection. Wesley later wrote a book, A Plain Account of Christian Perfection.
Essentially, the teaching is this. God expects us to give up our own desires and live for him alone:

1 Peter 4:1-2
Since therefore Christ suffered in the flesh, arm yourselves also with the same intention (for whoever has suffered in the flesh has finished with sin), so as to live for the rest of your earthly life no longer by human desires but by the will of God.

It is God at work within us that enables us to do this:

Philippians 2:12-13
Therefore, my beloved, just as you have always obeyed me, not only in my presence, but much more now in my absence, work out your own salvation with fear and trembling; for it is God who is at work in you, enabling you both to will and to work for his good pleasure.
1 John 5:18
We know that everyone who has been born of God does not keep on sinning, but he who was born of God protects him, and the evil one does not touch him.

If God works in us and protects us and enables us to stop sinning, then all we have to do is give up our own willfulness and let God take control.
In theory it's that simple, but in practice it is far from easy. The Apostle Paul struggled:

Romans 7:19-23
For I do not do the good I want, but the evil I do not want is what I do. Now if I do what I do not want, it is no longer I that do it, but sin that dwells within me. So I find it to be a law that when I want to do what is good, evil lies close at hand. For I delight in the law of God in my inmost self, but I see in my members another law at war with the law of my mind, making me captive to the law of sin that dwells in my members.

After preaching Christ for many years, Paul wrote from prison that this perfection was still in the future:

Philippians 3:12-14
Not that I have already obtained this or am already perfect, but I press on to make it my own, because Christ Jesus has made me his own. Brothers, I do not consider that I have made it my own. But one thing I do: forgetting what lies behind and straining forward to what lies ahead, I press on toward the goal for the prize of the upward call of God in Christ Jesus.

And even Jesus was tempted to follow his own (human) will rather than God's:

Matthew 26:39
And going a little farther he fell on his face and prayed, saying, &quot;My Father, if it be possible, let this cup pass from me; nevertheless, not as I will, but as you will.&quot;

So God's expectation is that we don't sin any longer. God has promised to protect us and work in us to accomplish this, and with God all things are possible. Therefore, theoretical perfection is possible. Just don't ask me for examples of people who have actually achieved it.