Psalm 141:1-10

O Lord, I call upon you; hasten to me!
Give ear to my voice when I call to you!
Let my prayer be counted as incense before you,
and the lifting up of my hands as the evening sacrifice!

Set a guard, O Lord, over my mouth;
    keep watch over the door of my lips!
Do not let my heart incline to any evil,
    to busy myself with wicked deeds
in company with men who work iniquity,
    and let me not eat of their delicacies!

Let a righteous man strike me—it is a kindness;
    let him rebuke me—it is oil for my head;
    let my head not refuse it.
Yet my prayer is continually against their evil deeds.
When their judges are thrown over the cliff,
    then they shall hear my words, for they are pleasant.
As when one plows and breaks up the earth,
    so shall our bones be scattered at the mouth of Sheol.

But my eyes are toward you, O God, my Lord;
    in you I seek refuge; leave me not defenseless!
Keep me from the trap that they have laid for me
    and from the snares of evildoers!
Let the wicked fall into their own nets,
    while I pass by safely. (ESV)

Philippians 4:8-9

Finally, brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things. What you have learned and received and heard and seen in me—practice these things, and the God of peace will be with you. (ESV)

Matthew 16:13-23

Now when Jesus came into the district of Caesarea Philippi, he asked his disciples, “Who do people say that the Son of Man is?” And they said, “Some say John the Baptist, others say Elijah, and others Jeremiah or one of the prophets.” He said to them, “But who do you say that I am?” Simon Peter replied, “You are the Christ, the Son of the living God.” And Jesus answered him, “Blessed are you, Simon Bar-Jonah! For flesh and blood has not revealed this to you, but my Father who is in heaven. And I tell you, you are Peter, and on this rock I will build my church, and the gates of hell shall not prevail against it. I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.” Then he strictly charged the disciples to tell no one that he was the Christ.

From that time Jesus began to show his disciples that he must go to Jerusalem and suffer many things from the elders and chief priests and scribes, and be killed, and on the third day be raised. And Peter took him aside and began to rebuke him, saying, “Far be it from you, Lord! This shall never happen to you.” But he turned and said to Peter, “Get behind me, Satan! You are a hindrance to me. For you are not setting your mind on the things of God, but on the things of man.” (ESV)