'Once' in the Bible

After all, it's useful only for kindling a fire, isn't it? And once you've burnt up the ends and charred through the middle of it, is it useful for anything else?

"When you were being so arrogant, you never once mentioned your sister Sodom

"I'll lead my people, my nation of Israel, across you mountains, and they will take possession of you again, and you'll be their inheritance once more. Never again will you leave them robbed of children.