Mark 2:5

New English Translation

⁵When Jesus saw their^[a] faith, he said to the paralytic, “Son, your sins are forgiven.”^[b]

Mark 2:5 sn The plural pronoun their makes it clear that Jesus was responding to the faith of the entire group, not just the paralyzed man.
Mark 2:5 sn The passive voice here is a divine passive (ExSyn 437). It is clear that God does the forgiving.

Mark 2:5

New International Version

⁵When Jesus saw their faith, he said to the paralyzed man, “Son, your sins are forgiven.”^(A)

New English Translation (NET)

New International Version (NIV)