Two more mekoros for wives supporting.
Noda bashiarim ba’alah bshivto im ziknei aretz. The husband sits and learns. Sadin asita vatimkor vichagor natina lakina’ani. The wife works.
Another mekor for wives supporting is from the king of beasts, the lion. The female lioness hunts, gathers, and what not. And the male lion, well you know…
Thus, when a man learns Torah, he is a king, like the lion, and the wife supports them.