New Revised Standard Version
Those who are kind reward themselves, but the cruel do themselves harm.

Contemporary English Version
Kindness is rewarded--but if you are cruel, you hurt yourself.

New American Bible
Kindly people benefit themselves, but the merciless harm themselves.

Douay-Rheims Bible
The wicked maketh an unsteady work: but to him that soweth justice, there is a faithful reward.

The wicked maketh an unsteady work: but to him that soweth justice, there is a faithful reward.

merciful

Psalm 41:1-4 Unto the end, a psalm for David himself. [2] Blessed is he that understandeth concerning the needy and the poor: the Lord will deliver him in the evil day. . . .

Psalm 112:4-9 To the righteous a light is risen up in darkness: he is merciful, and compassionate and just. . . .

Isaiah 32:7,8 The vessels of the deceitful are most wicked: for he hath framed devices to destroy the meek, with lying words, when the poor man speaketh judgment. . . .

Isaiah 57:1 The just perisheth, and no man layeth it to heart, and men of mercy are taken away, because there is none that understandeth; for the just man is taken away from before the face of evil.

Isaiah 58:7-12 Deal thy bread to the hungry, and bring the needy and the harbourless into thy house: when thou shalt see one naked, cover him, and despise not thy own flesh. . . .

Daniel 4:27 And the king answered, and said: Is not this the great Babylon, which I have built, to be the seat of the kingdom, by the strength of my power, and in the glory of my excellence?

Matthew 5:7 Blessed are the merciful: for they shall obtain mercy.

Matthew 6:14,15 For if you will forgive men their offences, your heavenly Father will forgive you also your offences. . . .

Matthew 25:34-40 Then shall the king say to them that shall be on his right hand: Come, ye blessed of my Father, possess you the kingdom prepared for you from the foundation of the world. . . .

Luke 6:38 Give: and it shall be given to you: good measure and pressed down and shaken together and running over shall they give into your bosom. For with the same measure that you shall mete withal, it shall be measured to you again.

2 Corinthians 9:6-14 Now this I say: He who soweth sparingly shall also reap sparingly: and he who soweth in blessings shall also reap blessings. . . .

Philippians 4:17 Not that I seek the gift: but I seek the fruit that may abound to your account.

but

Proverbs 15:27 He that is greedy of gain troubleth his own house: but he that hateth bribes shall live. By mercy and faith sins are purged away: and by the fear of the Lord every one declineth from evil.

Job 20:19-23 Because he broke in and stripped the poor: he hath violently taken away a house which he did not build. . . .

Ecclesiastes 4:8 There is but one, and he hath not a second, no child, no brother, and yet he ceaseth not to labour, neither are his eyes satisfied with riches, neither doth he reflect, saying: For whom do I labour, and defraud my soul of good things? in this also is vanity, and a grievous vexation.

James 2:13 For judgment without mercy to him that hath not done mercy. And mercy exalteth itself above judgment.

James 5:1-5 Go to now, ye rich men: weep and howl in your miseries, which shall come upon you. . . .