The merciful man does good for his own soul, but he who is cruel troubles his own flesh. The wicked man does deceptive work, but he who sows righteousness will have a sure reward. As righteousness leads to life, so he who pursues evil pursues it to his own death. Those who are of a perverse heart are an abomination to the Lord, but the blameless in their ways are His delight. Though they join forces, the wicked will not go unpunished; but the posterity of the righteous will be delivered. Proverbs 11:17-21
"The merciful man does good for his own soul." Proverbs 11:17a
Merciful: kindness (especially as extended to the lowly, needy and miserable)
Does good: accomplish, be beautiful, goodly
Soul: that which breathes, the inner being of man
"The blameless in their ways are His delight." Proverbs 11:20b
Blameless: sound, wholesome, unimpaired, innocent, having integrity
Delight: be acceptable, desire, favor, good pleasure
Mercy produces a godly response.
Integrity produces good pleasure.
Mercy and Integrity — both are results of a heart that is permeated with a deep sense of reverence for God (Acts 9:31 MSG).
Simply put, mercy makes you personally happy and blameless makes God happy. You can't go wrong with mercy and integrity!