'Stronger' in the Bible

Yahweh said to her, "Two nations are in your womb. Two peoples will be separated from your body. The one people will be stronger than the other people. The elder will serve the younger."

It happened, whenever the stronger of the flock conceived, that Jacob laid the rods before the eyes of the flock in the gutters, that they might conceive among the rods;

but when the flock were feeble, he didn't put them in. So the feebler were Laban's, and the stronger Jacob's.