'Rulers' in the Bible

For he did not make the angels rulers over the world to come, of which I am writing.

Give ear to those who are rulers over you, and do as they say: for they keep watch over your souls, ready to give an account of them; let them be able to do this with joy and not with grief, because that would be of no profit to you.

Give words of love from me to those who are rulers over you, and to all the saints. Those who are in Italy send you their love.