'One' in the Bible

Oh that there were one among you that would shut the doors, that ye might not kindle fire on mine altar in vain! I have no pleasure in you, saith Jehovah of hosts, neither will I accept an offering at your hand.

Have we not all one father? hath not one God created us? why do we deal treacherously every man against his brother, profaning the covenant of our fathers?

And did he not make one, although he had the residue of the Spirit? And wherefore one? He sought a godly seed. Therefore take heed to your spirit, and let none deal treacherously against the wife of his youth.

Ye have wearied Jehovah with your words. Yet ye say, Wherein have we wearied him? In that ye say, Every one that doeth evil is good in the sight of Jehovah, and he delighteth in them; or where is the God of justice?

Then they that feared Jehovah spake one with another; and Jehovah hearkened, and heard, and a book of remembrance was written before him, for them that feared Jehovah, and that thought upon his name.