Do not fret

 Do not fret because of those who are evil

or be envious of those who do wrong;

for like the grass they will soon wither,

like green plants they will soon die away.

Trust in the LORD and do good;

dwell in the land and enjoy safe pasture.

Take delight in the LORD,

and he will give you the desires of your heart. 

Commit your way to the LORD;

trust in him and he will do this:

He will make your righteous reward shine like the dawn,

your vindication like the noonday sun.

Be still before the LORD

and wait patiently for him;

do not fret when people succeed in their ways,

when they carry out their wicked schemes.

Refrain from anger and turn from wrath;

do not fret  - it  leads only to evil.

For those who are evil will be destroyed,

but those who hope in the LORD will inherit the land. 

A little while, and the wicked will be no more;

though you look for them, they will not be found.

But the meek will inherit the land

and enjoy peace and prosperity. 

The wicked plot against the righteous

and gnash their teeth at them;

but the LORD laughs at the wicked,

for he knows their day is coming. 

Psalm 37: 1 - 13 (NIV)

A Psalm of David