'Occasion' in the Bible

The victory had become an occasion for the army to mourn, because on that very day the troops heard the announcement, "The king is grieving for his son!"

drinking wine from bowls, anointing themselves with the choicest of oils, but not grieving on the occasion of Joseph's ruin

A potter has the right to do what he wants to with his clay, doesn't he? He can make something for a special occasion or something for ordinary use from the same lump of clay.