In preperation of the Pesach i read a couple of verses from the Tenach and found something which raised a couple of questions. In Divrei Hayamim II 35:6 for example i found that the Levites should sanctify themselves in order to slaughter the animal as a Pesach offering.
In Ezra 6:19 the Levites are described as being tahor; they purified themselves; where ritually clean in order to slaughter the animal as a Pesach offering.
Questions: 1. What's the difference between sanctify and purify in order to slaughter the offering for Pesach?
- Is this done by or related to the washing like Aharon and his sons were washed (once) and later had to wash their hands and feet (Shemot 30:19) in order to sancify themselves before HaShem and in order to purify themselves; be made ritually clean in order to offer?