Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX

Obadiah 1:13

Neither shouldest thou have gone into the gates of the people in the day of their troubles; nor yet shouldest thou have looked upon their gathering in the day of their destruction, nor shouldest thou have attacked their host in the day of their perishing.

Read in other translations