Whether strife is always a sin?

❌ Objection 1 : It would seem that strife is not always a sin. For strife seems a kind of contention: hence Isidore says (Etym. x) that the word "rixosus [quarrelsome] is derived from the snarling [rictu] of a dog, because the quarrelsome man is ever ready to contradict; he delights in brawling, and provokes contention." Now contention is not always a sin. Neither, therefore, is strife.

❌ Objection 2 : Further, it is related (Gn. 26:21) that the servants of Isaac "digged" another well, "and for that they quarrelled likewise." Now it is not credible that the household of Isaac quarrelled publicly, without being reproved by him, supposing it were a sin. Therefore strife is not a sin.

❌ Objection 3 : Further, strife seems to be a war between individuals. But war is not always sinful. Therefore strife is not always a sin.