God Calls his people out

Rev. 18:4-8 (ESV)
Then I heard another voice from heaven saying,

"Come out of her, my people,
lest you take part in her sins,
lest you share in her plagues;
[5] for her sins are heaped high as heaven,
and God has remembered her iniquities.
[6] Pay her back as she herself has paid back others,
and repay her double for her deeds;
mix a double portion for her in the cup she mixed.
[7] As she glorified herself and lived in luxury,
so give her a like measure of torment and mourning,
since in her heart she says,
'I sit as a queen,
I am no widow,
and mourning I shall never see.'
[8] For this reason her plagues will come in a single day,
death and mourning and famine,
and she will be burned up with fire;
for mighty is the Lord God who has judged her."

“Come out of her, my people, lest you take part in her sins, lest you share in her plagues.” Before God visits his final punishment upon the harlot he calls his people out of her. In this life, in this world, despite our best efforts our life will always be tainted with these sins, to some degree we are always guilty of her sins. But God does not hold us accountable for them because we have been forgiven in his son Jesus Christ.