Proverbs 25.21-22
Septuagint


ean peina o ecqroV sou, ywmize auton, 
ean diya, potize auton: 
touto gar poiwn anqrakaV puroV 
swreuseiV epi thn kefalhn autou, 
o de kurioV antapodwsei soi agaqa

New Testament - Romans 12.20

alla 
ean peina o ecqroV sou, ywmize auton:  
ean diya, potize auton: 
touto gar poiwn anqrakaV puroV 
swreuseiV epi thn kefalhn autou
 

Septuagint

If thine enemy hunger, feed him:  if he thirst, give him drink; for so doing thou shalt heap coals of fire upon his head, and the Lord shall reward thee with good

New Testament

But if thine enemy hunger, feed him; if he thirst, give him to drink:  for in so doing thou shalt heap coals of fire upon his head

Masoretic Text

If thine enemy be hungry, give him bread to eat; And if he be thirsty, give him water to drink:  For thou wilt heap coals of fire upon his head, And Jehovah will reward thee

Comments:  The MT includes the mention of bread and water, missing from the LXX and the NT.