Psalm 37, "Fret not thyself because of evildoers":
37:7 Rest in the LORD, and wait patiently for him: fret not thyself because of him who prospereth in his way, because of the man who bringeth wicked devices to pass.
37:8 Cease from anger, and forsake wrath: fret not thyself in any wise to do evil.
37:12 The wicked plotteth against the just, and gnasheth upon him with his teeth.
37:13 The LORD shall laugh at him: for he seeth that his day is coming.
37:14 The wicked have drawn out the sword, and have bent their bow, to cast down the poor and needy, and to slay such as be of upright conversation.
37:15 Their sword shall enter into their own heart, and their bows shall be broken.
37:30 The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment.
37:31 The law of his God is in his heart; none of his steps shall slide.
37:32 The wicked watcheth the righteous, and seeketh to slay him.
37:33 The LORD will not leave him in his hand, nor condemn him when he is judged.