Yes! God's salvation is different from our human concepts. His way is deliverance from sin. We think that everything would be alright if sins were uprooted from our being. But God's salvation is not the eradication of sins. He does not pull out our sins like rooted trees.
Many of us think that perfection is attained as soon as one has all sins repressed. But our person is one that loves to sin. It does not even want to suppress sin. Even when it tries grudgingly, there is no lasting result.The way of God is not a subjugation of sin, nor is it a mortification of the body. It is an exchange of person. The old man that was attached to sin is removed, and a new life that abhors sin is put in it's place. When temptation comes, the new life naturally shuns it. In this way, the body loses it's function in regard to performing sins.
God's salvation is entirely different from the concepts of other religions. God does not deal with sin, nor does He touch the body.All He takes care of is the old man within.This old man is just our life. When the old man is put to death, it means the old life is terminated, and a new life is put in place. The two ends, sin and the body, are left untouched, but the middle agent is taken away. Sin can no longer communicate with the body.
The man that is constituted with this new life is called the new man in the Bible. When temptation comes again, the new man reacts very differently from the old one. He no longer hearkens to those lures. He never seconds the motion of sin, and He never actuates the body to commit evil. The new man is diametrically opposed to sin. He is deaf to the suggestions of sin.
There is no other way for God to take but to pronounce death for this life. It's last breath has to be taken from it. It must be utterly terminated. When this happens sin will lose it's partner forever.
This victory over sin is absolute and begins the second we confess our sins and ask God to live in our hearts thru the Holy Spirit. Yet It is a process. Do mature christians make mistakes and sin along the way? sure it probably will happen. Does it have to? NO! but it most probably will. And God's grace covers this in His blood. But God wants us to finish His work in us. eventually, then, can we become sinless? ABSOLUTELY YES! For God Has called us to be more than conquerers thru being in His perfection- A NEW MAN! It is not us. But God who has made us able to be free from sin. Our job is not to earn anything....Simply apply ourselves to staying seated in things already accomplished in Christ!