'Thousand' in the Bible

For even if you were to have ten thousand teachers [to guide you] in Christ, yet you would not have many fathers [who led you to Christ and assumed responsibility for you], for I became your father in Christ Jesus through the good news [of salvation].

We must not indulge in [nor tolerate] sexual immorality, as some of them did, and twenty-three thousand [suddenly] fell [dead] in a single day!

nevertheless, in public worship I would rather say five understandable words in order to instruct others, than ten thousand words in a tongue [which others cannot understand].