Amsal 12:10

12:10 A righteous person cares for ¹  the life of his animal,

but even the most compassionate acts ²  of the wicked are cruel.

Amsal 28:9

28:9 The one who turns away his ear ³  from hearing the law,

even his prayer ⁴  is an abomination. ⁵ 

[12:10]  ¹ tn Heb “knows”; NLT “concerned for the welfare of.” The righteous take care of animals, not just people.

[12:10]  ² tn Heb “but the mercies.” The additional words appear in the translation for the sake of clarification. The line can be interpreted in two ways: (1) when the wicked exhibit a kind act, they do it in a cruel way, or (2) even the kindest of their acts is cruel by all assessments, e.g., stuffing animals with food to fatten them for market – their “kindness” is driven by ulterior motives (J. H. Greenstone, Proverbs, 129).

[28:9]  ³ sn The expression “turn away the ear from hearing” uses a metonymy to mean that this individual will not listen – it indicates a deliberate refusal to follow the instruction of the law.

[28:9]  ⁴ sn It is hard to imagine how someone who willfully refuses to obey the law of God would pray according to the will of God. Such a person is more apt to pray for some physical thing or make demands on God. (Of course a prayer of repentance would be an exception and would not be an abomination to the Lord.)

[28:9]  ⁵ sn C. H. Toy says, “If a man, on his part, is deaf to instruction, then God, on his part, is deaf to prayer” (Proverbs [ICC], 499). And W. McKane observes that one who fails to attend to God’s law is a wicked person, even if he is a man of prayer (Proverbs [OTL], 623).