Charles Ellicott Commentary Psalms 101:3

"I will set no base thing before mine eyes: I hate the work of them that turn aside; It shall not cleave unto me." — Psalms 101:3 (ASV)

I will set no... — Notice the wisdom of this resolve in a despotic monarch, who only has to speak to bring about whatever he has looked upon with desire.

Wicked thing. — Thing (or, word) of Belial. (See Note on Psalm 41:8.)

I hate the work of them that turn aside. — Or, I hate the doing of false things, depending on whether we understand the word in a concrete or abstract sense.

It shall not cleave to me. — Such conduct shall not be mine.