18 Do not deceive yourselves. If any one of you thinks he is wise by the standards of this age, he should become a “fool” so that he may become wise.
1 Corinthians 3:18 (NIV)
Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus. --- Philippians 4:6-7 (NIV)