Proverbs 30:10 - Joseph Benson’s Commentary on the Old and New Testaments

Accuse not a servant unto his master Without sufficient cause, for otherwise, in some cases, this may be a duty. As if he had said, A servant's condition is in itself mean and miserable, and therefore thou shouldest not make it worse without great and apparent necessity. Lest he curse thee Desire God to punish thee, which, though it might be sinful in him, yet, being deserved by thee, thou wouldst have reason to fear and expect; and thou be found guilty By God, who is always ready to plead the cause of the afflicted.