'Strong' in the Bible

The strong went out, and sought to go that they might walk back and forth through the earth: and he said, "Go around and through the earth!" So they walked back and forth through the earth.

Thus says Yahweh of Armies: "Let your hands be strong, you who hear in these days these words from the mouth of the prophets who were in the day that the foundation of the house of Yahweh of Armies was laid, even the temple, that it might be built.

It shall come to pass that, as you were a curse among the nations, house of Judah and house of Israel, so will I save you, and you shall be a blessing. Don't be afraid. Let your hands be strong."

Yes, many peoples and strong nations will come to seek Yahweh of Armies in Jerusalem, and to entreat the favor of Yahweh."

Wail, fir tree, for the cedar has fallen, because the stately ones are destroyed. Wail, you oaks of Bashan, for the strong forest has come down.