Hebrews 11:6

And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that he rewards those who earnestly seek him.

Romans 10:9

If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.

Philippians 4:6,7

“Do not be anxious about anything, but in everything, by prayer and petition, with thanksgiving, present your request to God.”