Two are better than one, because they have a good return for their labor: If either of them falls down, one can help the other up. But pity anyone who falls and has no one to help them up.  –Ecclesiastes 4:9-10

She considers a field and buys it; out of her earnings she plants a vineyard. She sets about her work vigorously; her arms are strong for her tasks. She sees that her trading is profitable, and her lamp does not go out at night. In her hand she holds the distaff and grasps the spindle with her fingers…Her husband is respected at the city gate, where he takes his seat among the elders of the land. She makes linen garments and sells them, and supplies the merchants with sashes.    –Proverbs 31:16-19, 23-24

Cornelius called two of his servants and a devout soldier who was one of his attendants.    –Acts 10:7

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Grant Sabatier, Financial Freedom, ch. 5, ch. 9, pp. 14, 34, 39, 14, 122, 152-153.

Richard Baxter, Chapters from A Christian Directory, p. 156.

Richard Steele, The Religious Tradesman, pp. 158-159.

William Mathews, Getting On in the World, pp. 198-199, 311, 265, 271.

William Perkins, A Treatise of the Vocations, p. 910.