“No, not seven times," answered Jesus, "but seventy times seven." Matthew 18:22
When I was 9, I remembered an argument of this statement between a teacher and a student. You know, kids talking about what they heard or saw or read... so, when one brought up this verse, one mentioned "so it means we only forgive someone 490 times... then we start hating them forever..." The teacher had a hard time explaining to the student