BELIEVE is OBEY from the “HEART”.
Believe is obedience. Faith is obedience. Belief and Faith are the same thing in the Lord Jesus Christ. Only He can see in your heart — obedience as an act of work just to say you did it — or obedience as a truthful, loving heart.
Believe is to obey the words of Jesus Christ found in the Gospels and letters of his original apostles (and their acknowledged co-workers) from a truthful, loving heart (John 14:21, James 1:22, Isaiah 1:18-20).
See FAQ on “What is Faith”?