the passage of Scripture you cited (2 Kings 14:5-6) teaches the principle of individual responsibility. This principle states that each person is responsible for their own sin and will not be punished for the sins of others. This is in contrast to the idea of collective punishment, which holds that a group of people can be punished for the sins of one or a few individuals.

The principle of individual responsibility is based on the belief that God is just and fair. God would not punish someone for the sins of someone else, because that would be unjust. Instead, God will judge each person according to their own deeds.

The passage in 2 Kings 14 illustrates this principle. When Amaziah became king, he executed the servants who had murdered his father, Joash. However, he did not execute the children of the murderers, because they were not personally responsible for their parents' crimes.

This principle of individual responsibility is an important one in Calvinism. It teaches us that we are each responsible for our own relationship with God and that we cannot blame others for our own sins. It also teaches us that God is just and fair and will judge us according to our own deeds.

In addition to the passage from 2 Kings 14, there are other passages in the Bible that teach the principle of individual responsibility. For example, the book of Deuteronomy says, "The fathers shall not be put to death for the children, nor the children be put to death for the fathers; a man shall be put to death for his own sin" (Deuteronomy 24:16). This passage makes it clear that God does not punish children for the sins of their parents.

The principle of individual responsibility is an important one for Christians to understand. It helps us to have a right understanding of God's justice and to avoid blaming others for our own sins. It also helps us to live a life of personal responsibility, knowing that we will be held accountable for our own actions.