Beat 3 eggs until foamy. Add 2 cups brown sugar and 1/4 cup honey. Mix and sift 3 1/2 cups of flour with 1 teaspoon baking soda, 1 teaspoon salt, and 2 teaspoons cinnamon. Add to first mixture. Mix well; add 1 1/2 cups chopped walnuts. Pat into greased and floured jelly roll pans, 16 x 11 inches. This makes a stiff dough, so wet hands and pat even. Bake at 350 degrees for 10 to 15 minutes. While hot, heat about 4 tablespoons lemon juice and stir in enough powdered sugar to make thin icing. Spread over cookies. Cool; cut into squares.