John Gill Commentary Luke 10:37

"And he said, He that showed mercy on him. And Jesus said unto him, Go, and do thou likewise." — Luke 10:37 (ASV)

And he said, he that showed mercy to him Meaning the Samaritan; which he was obliged to declare, though of another country and religion, and accounted as an enemy; yet the case was so plain, as put by Christ, that he could not with any honour or conscience, say otherwise:

then said Jesus unto him, go and do you likewise ; such like acts of beneficence and kindness, though to a person of a different nation and religion, and though even an enemy; and by so doing, you will not only appear to be a good neighbour yourself, but to love your neighbour as yourself.