Isaiah 56.7
Septuagint

o gar oikoV mou, oikoV proseuchV klhqhsetai 
pasi toiV eqnesin
 

New Testament - Matthew 21.13

o oikoV mou oikoV proseuchV klhqhsetai 

Mark 11.17

o oikoV mou oikoV proseuchV klhqhsetai 
pasin toiV eqnesin

Luke 19.46

kai estai o oikoV mou oikoV proseuchV

Septuagint

for my house shall be called a house of prayer for all nations

New Testament

Matthew 21.13:  My house shall be called a house of prayer

Mark 11.17:  My house shall be called a house of prayer for all nations

Luke 19.46:  And my house shall be a house of prayer

Masoretic Text

for my house shall be called a house of prayer for all peoples

Comments:  The NT, LXX and the MT agree.