Scribe, when brother Ralph Yankee Arnold, says that our spirit cannot sin, what he is referring to is our NEW MAN. The New Man cannot sin because it is born of God (1 John 3:9) and born of the Holy Scripture (1 peter 1:23). And since God and His word, the Holy Scripture, does not sin and cannot sin, therefore our New Nature also cannot sin. And if it cannot sin, it cannot die. And since it cannot die, it will live on forever. Hence, once we are born again (i.e. Born of God), we are a child of God forever. And so what Pastor Ralph Arnold states in the video is very true. Our New Man cannot sin. Our New Man contains the very righteousness and holiness of God Himself and also of His word, the blessed Holy Scripture. The New Man only wants to live holy and do that which is right and pleasing in the sight of God.
The Old Man (our Flesh), also called the Old Adamic Nature, or Sin Nature, does sin and all it wants to do is sin and go after the lust of the flesh, the lust of the eyes and the pride of Life. Hence, when we walk in the flesh, we will sin because we are yielding to the Flesh (our Old Man)
But when we walk in the Spirit, we will not sin, since we are yielding to the New Man and to the Holy Spirit living inside of us.
The Old Man (our Flesh), also called the Old Adamic Nature, or Sin Nature, does sin and all it wants to do is sin and go after the lust of the flesh, the lust of the eyes and the pride of Life. Hence, when we walk in the flesh, we will sin because we are yielding to the Flesh (our Old Man)
But when we walk in the Spirit, we will not sin, since we are yielding to the New Man and to the Holy Spirit living inside of us.