'One' in the Bible

You have sown much but have harvested little. You have eaten without [being] satisfied; {you have drunk without being satiated}; you have worn clothes without [being] warm; the one who earns wages puts it in {a pouch with holes}.'

Then Haggai said, "If one who is unclean from contact with a corpse touches any of these, will it become unclean?" The priests answered, "Yes, it will be become unclean."

But now, please {consider} from this day forward, before one stone was placed on another in the temple of Yahweh,

{from that time when} one came to a heap of twenty [measures], there were [only] ten, and [when] one came to the wine vat to draw out fifty measures, there were [only] twenty.

and I will overthrow the thrones of kingdoms and destroy the military strength of the kingdoms of the nations. I will overthrow chariots and their drivers; horses and their riders will fall, every one by the sword of another!