You’ve heard about “going the second mile.” In His “Sermon on the Mount” in Galilee Jesus said (in a context forbidding retaliation for evil), “And whoever compels you to go one mile, go with him two” (Matt. 5:41). In New Testament times a Roman soldier could compel a Jewish citizen (or others) to carry burdens for them. They were authorized by the Roman government to press civilians into service of this nature; such would have to carry the load for the distance of one mile, but no further.
But how would you know when the mile was up? Conveniently, Roman roads had mile markers, such as these below, collected from the Beth Shan area.
Jesus tells His disciples that instead of complaining about an oppressive government, or bemoaning their victimization, they were to go an extra mile. You see, Jesus’ disciples are different; in the world, but not of the world. Who knows but that from time to time this kind of unusual conduct would cause that soldier to ask, “What makes you different; what do you have that I don’t have?” If so then as Peter said, “But sanctify the Lord God in your hearts, and always be ready to give a defense to everyone who asks you a reason for the hope that is in you, with meekness and fear; having a good conscience, that when they defame you as evildoers, those who revile your good conduct in Christ may be ashamed” (1 Pet. 3:15,16).
I’ve previously written on milestones here.