Elizabeth you are young and so I will be real gentle...
One the one hand you say it is finished, and on the other you say God can change us.... Now what is it, is it finished or is He still at work?
What was finished on the cross? All God has to d oto save you?
What did Jesus finish on the cross? If Jesus finished ALL one the cross, why did he make the Emmaus men KNOW him only AFTER he was on the cross? Why did He open scripture for them? Why did Jesus say... there are still many things He wants to teach His men, but they CANNOT BEAR IT YET? So when will they be able to bear ALL TRUTH? Before or AFTER the cross?
Why could God's men ONLY GO OUT IN THE SPIRIT AFTER the cross, if Jesus completed ALL ON THE CROSS? Nope there are MANY things people do not understnd, and one of the is.... IT IS DONE!!! Not ALL IS DONE.... IT IS DONE... what is the IT Jesus talked about?
Tip Jesus told the EMMAUS men what he had to do to have IT done.... Jesus had to DIE to ENTER into the Glory of being the ONE THAT WILL SAVE.... Actually the workd of Jesus SAVIOUR only STARTED at the cross, but the work of the LAMB ended on the cross.
God did not leave Christ DEAD, like all the previous blood sacrifices... that could do NOTHING... THis Sacrifice of HIS LAMB, has MANY tings to follow the cross... Like RESURRECTION... QUICKENING OF SPIRIT,.... REBIRTH..... HOLINESS..... FILLED WITH SPIRIT....
Just one little place I would like to show you.... Jesus said for the men to WAIT in Jerusalem.... What did they wait for? And who did to them what they waited for? If it were finished at the cross, NO MAN WILL GO TO HEAVEN!!! NOT ONE! The cross only gets us clean.... And the cross only does it ONCE!!!!! If you get dirty AFTER you tasted the Holy Spirit and was partaker in God's righteousness,,,, and you sin again... NOT EVEN THE CROSS CAN SAVE YOU THEN...
This thing that we will always sin.... Show me a verse that says, YOU WILL ALWAYS SIN!!!
There is none...
This is the Gospel of God...
Can God make you holy and perfect? Yes HE CAN
Does God want you to be holy and perfect here on earth? YES HE DOES!
What will stop God from doing that? NOTHING!
That is how simple the Gospel and GOOD NEWS is... God wants His children to be in Him, and Him in them.. AND THAT IS WHAT HE DOES.