Kàn zài wǒ de miàn shàng, jiù yuánliàng tā zhè yī cì ba.
For my sake, please forgive him just this once.
Tips
usage
面上 has two distinct uses: (1) on the surface / outwardly (indicating something is superficially true but not substantively); (2) 看在…的面上 means 'for the sake of someone / out of regard for someone.' Context determines which meaning applies.