Isaiah 49.8
Septuagint

kairw dektw ephkousa sou, 
kai en hmera swthriaV ebohqhsa soi

New Testament - 2 Corinthians 6.2

kairw dektw ephkousa sou 
kai en hmera swthriaV ebohqhsa soi

Septuagint

In an acceptable time have I heard thee, and in a day of salvation have I succoured thee

New Testament

At an acceptable time I hearkened unto thee, And in a day of salvation did I succor thee 

Masoretic Text

In an acceptable time have I answered thee, and in a day of salvation have I helped thee

Comments:  The NT and the LXX agree.  The MT varies slightly.