Trinity: Jesus Is Able to Forgive Sin

In Mark, Chapter 2 we read:

⁵ Seeing their faith, Jesus told the paralytic, “Son, your sins are forgiven.”
⁶ But some of the scribes were sitting there, thinking to themselves: ⁷ “Why does He speak like this? He’s blaspheming! Who can forgive sins but God alone?”
(Mark 2:5,6)

The scribes ask a good question: Can anyone but God forgive sin?
Jesus proves to the contrary with a miracle:

¹⁰ “But so you may know that the Son of Man has authority on earth to forgive sins,” He told the paralytic, ¹¹ “I tell you: get up, pick up your mat, and go home.”

¹² Immediately he got up, picked up the mat, and went out in front of everyone.
(Mark 2:10-12)

Another similar incident is recorded in Luke concerning a woman who was especially sinful:

⁴⁴ Then he turned toward the woman and said to Simon, “Do you see this woman? I came into your house. You did not give me any water for my feet, but she wet my feet with her tears and wiped them with her hair. ⁴⁵ You did not give me a kiss, but this woman, from the time I entered, has not stopped kissing my feet. ⁴⁶ You did not put oil on my head, but she has poured perfume on my feet. ⁴⁷ Therefore, I tell you, her many sins have been forgiven—as her great love has shown. But whoever has been forgiven little loves little.”
⁴⁸ Then Jesus said to her, “Your sins are forgiven.”
⁴⁹ The other guests began to say among themselves, “Who is this who even forgives sins?”
⁵⁰ Jesus said to the woman, “Your faith has saved you; go in peace.”
(Luke 7:44-50)

It appears that even a little faith in Jesus goes a long way towards having your sins forgiven.

Jesus also was able to forgive the sin of a thief who asked him for mercy:

⁴² Then he said, “Jesus, remember me when you come into your kingdom.”
⁴³ Jesus answered him, “Truly I tell you, today you will be with me in paradise.”
(Luke 23:42, 43)

It is not clear that Mohammed thought his own sins were forgiven.