On a study break recently, Margaret and I walked the 10.5 mile Apple Capital Loop Trail in Wenatchee, Washington, on both sides of the Columbia River. We crossed three bridges (two over the Columbia River and one over the Wenatchee River). It was really too long of a hike for us as we did not have proper clothing or shoes. It took us 3 hours 15 minutes, resulting in sore legs and feet.
Dad Jespersen in China years ago would sometimes need to take long trips of 90 to 150 miles and would walk 30 to 35 miles daily!
We get painful feet from exercise, but missionaries in the past suffered much physically in normal, everyday ministry.
… do not be ashamed of the testimony of our Lord … but join with me in suffering for the gospel according to the power of God, who has saved us and called us with a holy calling, not according to our works, but according to His own purpose and grace which was granted us in Christ Jesus from all eternity … who abolished death and brought life and immortality to light through the gospel (2 Timothy 1:8-10, nasb).