I suppose because our righteousness before God is based on His work.
Which He accomplishes through us. Thus, Scripture says:
Romans 2:13 …
but the doers of the law shall be justified.
And God remembers that these are our works:
Hebrews 6:10For God is not unrighteous to forget
your work
So, Scripture says that God takes into account, our works. Where does it say that this is only for sanctification? Or that justification occurs only once? In fact, we will all stand before Christ at the Judgment, precisely to be justified or condemned. Where does it say that our justification righteous standing before God has neither risen, nor fallen, by then?
I mean you are either a child of God or not.
There are children of God who have lost their justification and their sanctification, completely. So, that doesn’t help your argument.
And there are people who are not children of God who are doing good works and thus, becoming just in God’s eyes.
Now love is something else…that can grow, as well as faith and works. Dont think God loves us more as His child if we work more.
God loves us whether we are His baptized children or not. God is love. And God is the Creator of all things thus, Father of all things.
Acts 17:24 God that made the world and all things therein, seeing that he is Lord of heaven and earth, dwelleth not in temples made with hands; 25 Neither is worshipped with men’s hands, as though he needed any thing, seeing he giveth to all life, and breath, and all things; 26 And hath made of one blood all nations of men for to dwell on all the face of the earth, and hath determined the times before appointed, and the bounds of their habitation; 27 That they should seek the Lord, if haply they might feel after him, and find him, though he be not far from every one of us: 28 For in him we live, and move, and have our being; as certain also of your own poets have said,
For we are also his offspring.
29 Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man’s device.
So, that doesn’t help you either. Scripture doesn’t support your idea.
Where did you come up with the idea that justification is static? Where did you come up with the idea that men can’t grow in righteousness? Where did you come up with the idea that our standing before God can’t be changed by the works which we do?