Hexagram 6, Sòng (Conflict): Line 4
讼卦九四 · 天水讼 · 中文版
九四：不克讼，复即命，渝安贞，吉。
The line (Legge)
The fourth NINE, undivided, shows its subject unequal to the contention. He returns to (the study of Heaven's) ordinances, changes (his wish to contend), and rests in being firm and correct. There will be good fortune.
Small Image commentary
'He returns to (the study of Heaven's) ordinances, changes (his wish to contend), and rests in being firm and correct:' - he does not fail (in doing what is right).
象曰：复即命，渝安贞，不失也。
In plain words
Unable to win the dispute, one turns back to what is right, changes one's mind and settles into being correct: good fortune. The fourth line is strong but not central; it meant to contend but is able to change its mind. The Small Image says that turning back to what is right and settling into correctness loses nothing.
Applying it to your situation
If you find yourself arguing for something you are not actually right about, this line suggests there is no shame in turning back. What is one view you are willing to change now?
Position
A solid (yang) line in the fourth place, which is a yin (even) place, so it is not in its proper place. Its partner is line 1; one is yin and the other yang, so they respond to each other.
If this line moves
With this line moving alone, Sòng changes into Hexagram 59 Huàn (Dispersion). The Jiaoshi Yilin verse for this change (Chinese): 焦氏易林·讼之涣.
A recorded case from Takashima
Song to Huan: a head clerk thinks of confronting his employer: A head clerk who had worked for the shop since its founding saw his employer hire university graduates at higher pay, and thought of complaining, or else asking for a payout to set up on his own. The fourth line of Song, "unable to win the dispute", led Takashima to advise patience.
The hexagram
Hexagram 6 Sòng (Conflict). The Judgment: Song intimates how, though there is sincerity in one's contention, he will yet meet with opposition and obstruction; but if he cherish an apprehensive caution, there will be good fortune, while, if he must prosecute the contention to the (bitter) end, there will be evil. It will be advantageous to see the great man; it will not be advantageous to cross the great stream.
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English text: James Legge, The Yi King (Sacred Books of the East, vol. 16, 1882), public domain, as transcribed by the Chinese Text Project. Chinese: the received text. Offered for study and reflection, not as prediction. Plain-English readings and position notes by this site.