Albert Barnes Commentary Psalms 119:132

"Turn thee unto me, and have mercy upon me, As thou usest to do unto those that love thy name." — Psalms 119:132 (ASV)

Look thou upon me - Do not turn away from me. Regard me with your favor.

And be merciful unto me, as thou usest to do unto those that love thy name - Margin, “According to the custom toward those,” etc. The Hebrew word is “judgment”: “according to the judgment to the lovers of your name.”

The word seems here to be used in the sense of “right”; of what is due; or of what is usually determined: that is, as God usually determines, judges, and acts toward those who love him.

The idea is, Treat me according to the rules which regulate the treatment of your people. Let me be regarded as one of them, and be dealt with accordingly. On the sentiment in this passage, see the notes at (Psalms 106:4).