'Once' in the Bible

He, the God who leads you, will expel the nations little by little. You will not be allowed to destroy them all at once lest the wild animals overrun you.

And he said to me, "Get up, go down at once from here because your people whom you brought out of Egypt have sinned! They have quickly turned from the way I commanded them and have made for themselves a cast metal image."

The Lord your God will make the labor of your hands abundantly successful and multiply your children, the offspring of your cattle, and the produce of your soil. For the Lord your God will once more rejoice over you to make you prosperous just as he rejoiced over your ancestors,