I think you make it way too complicated.
It's not.
Believe in Jesus Christ as your Lord and Savior who paid for your sins by His death and resurrection, and you are one of His flock, by the grace of God alone.
No, that's backwards. Your statement is vastly oversimplified.
It's not that either is too simple or too complicated.
the former formulation would be akin to saying, "Put your foot on the break. Stick the key into the ignition, and turn. Shift the car into reverse. Gently ease up on the brake and, if the car isn't moving backward, gently put your foot on the gas.
Dr. Eck's formulation would be akin to saying, "DRIVE!"