Albert Barnes Commentary Psalms 101:2

"I will behave myself wisely in a perfect way: Oh when wilt thou come unto me? I will walk within my house with a perfect heart." — Psalms 101:2 (ASV)

I will behave myself wisely — In the choice of principles to guide me; in my conduct in my family; in my official relations. This expresses a “desire” to act wisely, and a “purpose” to do it.

In a perfect way — In accordance with the perfect rules of right. I will make these my guide. I will “aim” to be perfect; I will have before me a perfect standard.

O when will you come to me? — Perhaps this would be better rendered, “When you come to me;” that is, when you then visit me and my dwelling, you shall find that these are the principles which regulate and govern me in my house.

The idea is that God would come to visit his dwelling and inspect his conduct; and that whenever this should occur—however often it might be, or however unexpectedly he might come—he should “always” find these principles governing him in his family.

A man should so live that “whenever” God comes into his dwelling, or when anyone comes, or however narrow and searching may be the inspection, these principles shall be found to regulate his conduct.

I will walk within my house — Before my family; in the principles which shall govern me there.

With a perfect heart — Always aiming to do exactly what is right: in my general conduct; in the rules by which I live; in my treatment of all under my charge and in my employ. The great principles of “right,” in everything — in the smallest matters — shall guide and govern me.