4 Rejoice in the Lord always. I will say it again: Rejoice!
5 Let your gentleness be evident to all. The Lord is near.
6 Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God.
7 And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus.
8 Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things.
9 Whatever you have learned or received or heard from me, or seen in me—put it into practice. And the God of peace will be with you.

Reference: Philippians 4:4-9 (NIV)