The Apostle Paul
Ephesians 6:15BSB·traditional attribution

and with your feet fitted with the readiness of the gospel of peace.

John Calvin Reformed @genevareformer

15. And your feet shod. The allusion, if I mistake not, is to the military greaves; for they were always reckoned a part of the armor, and were even used for domestic purposes. As soldiers covered their legs and feet to protect them against cold and other injuries, so we must be shod with the gospel, if we would pass unhurt through the world.

Matthew Henry Presbyterian @wholebiblehenry

Here is a general exhortation to constancy in our Christian course, and to encourage in our Christian warfare. Is not our life a warfare? It is so; for we struggle with the common calamities of human life. Is not our religion much more a warfare?

Commenting on Ephesians 6:10-18

John Gill Reformed Baptist @doctorgill

And your feet shod with the preparation of the Gospel of peace. The Gospel is so called, because it makes men to be of peaceable tempers and behaviour, and gives peace to distressed minds: it directs the way to eternal peace, and publishes peace made by the blood of Christ; and has a much better claim to this name, and epithet, than the law has...