‘As far as the East is from the West, so far has He removed our transgression (sin) from us’ Psalm 103:12.
Once we have confessed our sin and told God that we are sorry by changing our life style, then we are forgiven.
You can define the North and South poles, people have stood there, it can be checked using satellite equipment. Yet it is impossible to define the East and West. It is as if we had never sinned!
‘Who is a God like You, pardoning iniquity...He delights in mercy...You will cast all our sins into the depth of the sea.’ Micah 7:18, 19.
In some parts of the world’s oceans, the sea is over two miles deep and that does not include the underwater ravines/canyons, most of which cannot be explored due to the extreme depth and water pressures.