When I put my son on my bed, he has a tendency to run fearlessly toward the edges, not realizing how dangerous it is to fall from that height.  He does this, in part, because he trusts me completely — every time he’s ever gotten to the edge I’ve caught him, so he has no reason to be afraid or worried.

In John 14, Jesus tells his disciples that the prescription for a troubled heart is trusting him. Those who trust him completely will have peace, and people who are at peace can also live confidently.