A lot of people quote you Isaiah 59:1-2 and tell you that sin will separate from God even after you have become a Christian.
Here’s what it says:
Surely the arm of the Lord is not too short to save,
nor his ear too dull to hear.
But your iniquities have separated
you from your God;
your sins have hidden his face from you,
so that he will not hear.
Dear friends, this is a person example of taking scripture out of it context.
The problem of sin has already been dealt with. If you care to read on you will see that God has already provided his right hand as the solution:
The Lord looked and was displeased
that there was no justice.
16 He saw that there was no one,
he was appalled that there was no one to intervene;
so his own arm achieved salvation for him,
and his own righteousness sustained him.
17 He put on righteousness as his breastplate,
and the helmet of salvation on his head;
he put on the garments of vengeance
and wrapped himself in zeal as in a cloak.
21 “As for me, this is my covenant with them,” says the Lord. “My Spirit, who is on you, will not depart from you, and my words that I have put in your mouth will always be on your lips, on the lips of your children and on the lips of their descendants—from this time on and forever,” says the Lord.
“My Spirit will not depart from you!” says the Lord. Notice Jesus says sin cannot separate you from my Spirit.
“His own arm achieved salvation for him”. This “arm” has righteousness as his breastplate and helmet of salvation on him. Yes he is Jesus.
You now begin to realize that the helmet of salvation and the breastplate of righteousness is about the “arm achieving salvation”. The armor of God as such is what Jesus did for you. Made you inseparable to His Father.
We should never ask if God can stand sin. When you do that you make the presumption that sin is greater than God. It isn’t. The question you should be asking is “can sin stand God”? The answer is no. Sin cannot. It totally disintegrates. Sin cannot stand God. It is totally destroyed. Now here lies the question. How can God dwell in you if you say you are only forgiven when you confess your sins? The very fact that God dwells in you is because your sins have been taken away once and for all on the cross.