A false balance is abomination - This refers to the balance itself deceitfully constructed, so that it is sooner turned at one end than at the other. This is occasioned by one end of the beam being longer than the other.

But a just weight - אבן שלמה eben shelemah, the perfect stone probably because weights were first made of stone; see the law, Deuteronomy 25:13-16 (note).

a just weight

Proverbs 16:11 A just weight and balance are the LORD's: all the weights of the bag are his work.

Ezekiel 45:10-12 You shall have just balances, and a just ephah, and a just bath...

The Soul Winner
A sermon (No. 1292) delivered on Thursday evening, January 20th, 1876, at the Metropolitan Tabernacle, Newington, by C. H. Spurgeon. "The fruit of the righteous is a tree of life; and he that winneth souls is wise."--Proverbs 11:30. I had very great joy last night--many of you know why but some do not. We held our annual meeting of the church, and it was a very pleasant sight to see so many brethren and sisters knit together in the heartiest love, welded together as one mass by common sympathies, …
C.H. Spurgeon—Sermons on Proverbs

Jesus, My Rock.
When the storm and the tempest are raging around me, Oh! where shall I flee to be safe from their shock? There are walls which no mortal hands built to surround me, A Refuge Eternal,--'Tis JESUS MY ROCK! When my heart is all sorrow, and trials aggrieve me, To whom can I safely my secrets unlock? No bosom (save one) has the power to relieve me, The bosom which bled for me, JESUS MY ROCK! When Life's gloomy curtain, at last, shall close o'er me, And the chill hand of death unexpectedly knock, I will …
John Ross Macduff—The Cities of Refuge: or, The Name of Jesus

George Muller, and the Secret of His
POWER IN PRAYER WHEN God wishes anew to teach His Church a truth that is not being understood or practised, He mostly does so by raising some man to be in word and deed a living witness to its blessedness. And so God has raised up in this nineteenth century, among others, George Muller to be His witness that He is indeed the Hearer of prayer. I know of no way in which the principal truths of God's word in regard to prayer can be more effectually illustrated and established than a short review …
Andrew Murray—With Christ in the School of Prayer