Charles Spurgeon Commentary Isaiah 26:7

"The way of the just is uprightness: thou that art upright dost direct the path of the just." — Isaiah 26:7 (ASV)

The way of the just is uprightness: you, most upright, weigh the path of the just.

God makes a plain path for his own people; and he, knowing their way, correctly assesses it. Let them never fear for a moment that he will condemn them because of the condemnation of others; he himself takes care to weigh the path of the just, and his scales cannot err.

The way of the just is uprightness:

Or, as it might be better rendered, "The way of the just is an even path." The righteous shall steadily and safely stand in it, while others find themselves sometimes up and sometimes down, and their path shall be slippery and perilous.

You, most upright, do weigh the path of the just.

God judges us by weight, not by appearance; not by what we seem to be, but by what we are in the balances of the sanctuary.