They were not required to be celibate, but sexual intercourse rendered them unclean until they underwent further purification.

Jerusalem, the Queen of Nations depicted in this first image, is seen in the next 13 solos undergoing ordeals and purification.

"The kohen shall command to take for the person undergoing purification (the metzorah) two live kosher birds, cedarwood, red string and hyssop."

"But first you must undergo purification."

During the days before the sacrifice, both gods undergo purification.

The samples were then analysed at Surrey University, where they underwent deparaffinisation, DNA extraction, and purification before polymerase chain reaction techniques.

The other products are made from screened blood or plasma and undergo purification that destroys any harmful viruses or bacteria.

Then she undergoes ritualistic purification by bathing in prescribed waters.

He changes from a suit to his priest's robe, undergoing purification by pouring water over himself.

The urine then undergoes purification and a chemical treatment.