Trust

" Don't let your heart's be troubled. Trust in God, and trust also in Me "
John 14 v 1

Heart ; kardia - the centre of all physical and spiritual life.

Troubled; tarasso - cause one inward commotion, take away calmness of mind, disturb equanimity, to strike one's spirit with fear and dread, to render anxious or distressed.

Believe; pisteuo - to think to be true, place confidence in, to trust in Jesus or God as able to aid either in obtaining or in doing something.