1 Peter 1:13

Therefore prepare your minds for action. Be sober-minded. Set your hope fully on the grace to be given you at the revelation of Jesus Christ.

Note Literally Wherefore gird up the loins of your mind

Wherefore gird up the loins of your mind, be sober, and hope to the end for the grace that is to be brought unto you at the revelation of Jesus Christ;

Therefore prepare your minds for action. Be sober, and set your hope fully on the grace that will be brought to you at the revelation of Jesus Christ—

Note literally, “gird up the waist of your mind” or “put on the belt of the waist of your mind”

Wherefore girding up the loins of your mind, be sober and set your hope perfectly on the grace that is to be brought unto you at the revelation of Jesus Christ;