Bible readings:

Psalm 37:1-9 (NIV)

Of David.

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.

Luke 15:1-7 (NIV)

The Parable of the Lost Sheep

15 Now the tax collectors and sinners were all gathering around to hear Jesus. But the Pharisees and the teachers of the law muttered, “This man welcomes sinners and eats with them.”

Then Jesus told them this parable: “Suppose one of you has a hundred sheep and loses one of them. Doesn’t he leave the ninety-nine in the open country and go after the lost sheep until he finds it? And when he finds it, he joyfully puts it on his shoulders and goes home. Then he calls his friends and neighbors together and says, ‘Rejoice with me; I have found my lost sheep.’ I tell you that in the same way there will be more rejoicing in heaven over one sinner who repents than over ninety-nine righteous persons who do not need to repent.