APHIENTAI Forgive is letting go.

#aphientai is usually translated as Forgive. It does however literally mean let go or send away.
#apo+hieemi send forth discharge send our or away let go set free permit let dissolve

Both Matthew and Mark and Luke record a confrontation during which Jesus asks the scribes which is better to forgive sins or heal.

Noe that he does both and heals the paralytic man.

they have been let go of/for you the sins are his words here.

Yes I'm being rather literal but I'm emphasizing a point

The use of Forgive  is a good translation but we should think of why that word was chosen to translate Aphientai?

not just I forgive you but You are forgiven and freed!