'Dealer' in the Bible

A harsh vision has been shown to me;The treacherous one deals treacherously, and the destroyer destroys.Go up, Elam! Lay siege, Media!All the groaning [caused by Babylon’s ruthless oppressions] I [the Lord] have brought to an end.

“Again, the kingdom of heaven is like a merchant in search of fine pearls,

A woman named Lydia, from the city of Thyatira, a dealer in purple fabrics who was [already] a worshiper of God, listened to us; and the Lord opened her heart to pay attention and to respond to the things said by Paul.