Hi arunangelo: I Often hear similar comments about forgiveness like yours, by people who claim to understand Christianity. Quote--("forgive without any limit!")
Jesus did not say we should always be forgiving. Notice a striking difference between Jesus' two comments on forgiveness: In Matthew 18:21, 22, (NIV), Peter asked Jesus: "Lord, how many times shall I forgive my brother when he sins against me? Up to seven times?" Jesus answered, "I tell you, not seven times, but seventy-seven times." Here Jesus is talking about a "freely forgiving spirit," a willingness to forgive and not hold grudges. But notice what Jesus said in Luke 17:3, 4, (NIV) "If your brother sins, rebuke him, and if he repents, forgive him." Notice Jesus clearly stated, "IF HE REPENTS!" There is a clear difference between minor everyday sins that we should freely forgive, and more serious sins that need to be confronted and give help and counsel so that they can repent and gain forgiveness.
Remember what Jesus said in Matthew 12:31: (NIV)"Every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven." If someone commits a serious malicious, willful sin against you and thus against God's holy standards, and does not show any repentance, Jesus will not forgive them. So how can the innocent Christian, if they want to imitate Christs example? In fact the John refers to this very point in his first letter. 1 John 5:16, (NIV) says: "If anyone sees his brother commit a sin that does not lead to death, he should pray and God will give him life. I refer to those whose sin does not lead to death. There is a sin that leads to death. I am not saying that he should pray about that." John makes a clear difference between those sins that will be forgiven, where the sinner is repentant; and those sins that will not be forgiven by Jesus and the innocent victim, because they are not repentant. Some Christians are uncomfortable with the notion of not forgiving people, because they fail to grasp the concept John highlights here, there are minor sins that warrant forgiveness, and sins that do not warrant forgiveness because they are very serious and the person in question is not repentant!