God the Father already sees us as justified, sanctified, and glorified (
Rom. 8:29,
30;
I Cor. 1:30;
Heb. 10:10,
14).
because He see the end from the beginning
"It is finished"
God took care of everything before it even happened
and we can reap the benefits of the fact that he took care of everything, and this fact is everlasting, endures to even our future
like an installed fountain of living water, flowing even till now
and we can find rest
And find joy in this rest
if the son set you free you are free indeed