'Once' in the Bible

As soon as you enter the city you will find him before he goes up to the high place to eat, for the people will not eat until he comes, because he must bless the sacrifice; afterward those who are invited will eat. Now therefore, go up for you will find him at once.”

Then David inquired of the Lord once more. And the Lord answered him and said, “Arise, go down to Keilah, for I will give the Philistines into your hand.”