Ecclesiastes 10:7

Revised Standard Version (RSV-CI)

I have seen slaves on horses, and princes walking on foot like slaves.

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And the king went forth, and all the people after him; and they halted at the last house.

let royal robes be brought, which the king has worn, and the horse which the king has ridden, and on whose head a royal crown is set;

It is not fitting for a fool to live in luxury, much less for a slave to rule over princes.

a slave when he becomes king, and a fool when he is filled with food;