“If your enemy is hungry, feed him; If he is thirsty, give him a drink; For in so doing you will heap coals of fire on his head."

What does this mean and how should we respond?  Seek peace, pursue it earnestly.

Matthew:5:43-48[43]Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy.[44]But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;[45]That ye may be the children of your Father which is in heaven: for he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust.[46]For if ye love them which love you, what reward have ye? do not even the publicans the same?[47]And if ye salute your brethren only, what do ye more than others? do not even the publicans so?[48]Be ye therefore perfect, even as your Father which is in heaven is perfect.
Romans:12:17-21[17]Recompense to no man evil for evil. Provide things honest in the sight of all men.[18]If it be possible, as much as lieth in you, live peaceably with all men.[19]Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord.[20]Therefore if thine enemy hunger, feed him; if he thirst, give him drink: for in so doing thou shalt heap coals of fire on his head.[21]Be not overcome of evil, but overcome evil with good.
Proverbs:25:21-22[21]If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink:[22]For thou shalt heap coals of fire upon his head, and the LORD shall reward thee.