'Particular' in the Bible

On this particular day you are not to do any work, for it is a Day of Atonement to make atonement for yourselves before the Lord your God.

If any person does not practice self-denial on this particular day, he must be cut off from his people.

However, in a particular matter may the Lord pardon your servant: When my master, the king of Aram, goes into the temple of Rimmon to worship and I, as his right-hand man, bow in the temple of Rimmon—when I bow in the temple of Rimmon, may the Lord pardon your servant in this matter.”