Verses with the word trade in the Old Testament (4 verses):

Genesis 34:10
And ye shall dwell with us: and the land shall be before you; dwell and trade ye therein, and get you possessions therein.

Genesis 34:21
These men are peaceable with us; therefore let them dwell in the land, and trade therein; for the land, behold, it is large enough for them; let us take their daughters to us for wives, and let us give them our daughters.

Genesis 46:32
And the men are shepherds, for their trade hath been to feed cattle; and they have brought their flocks, and their herds, and all that they have.

Genesis 46:34
That ye shall say, Thy servants' trade hath been about cattle from our youth even until now, both we, and also our fathers: that ye may dwell in the land of Goshen; for every shepherd is an abomination unto the Egyptians.