Trust (noun): firm belief in the reliability, truth, ability, or strength of someone or something (New Oxford American Dictionary)

Who or what can we really trust? Name one person you know who will never ever fail you. One institution that has never let you down. Hard to think of one?
No human being and nothing that is man-made can be absolutely trustworthy. I think insurance companies are the epitome of this fact. They sell you a policy that is supposed to insure you against whatever it covers — except for the 50 pages of limitations all clearly written in fine print. Thanks. I feel really secure now.

And yet, we sign that policy. Even though we know it may not cover us when we most need it, we gladly sign it and pay for it every month.

We ask the lawyer, “How confident are you we can win this case?” He or she says, “We have a good case… I will do my best, but I can’t promise anything.” And we pay the fees.

We ask the doctor, “If I take this medication, have that operation, follow the other treatment, will I be healed?” The doctor says, in effect, “Fingers crossed…” And we go for it anyway.

The question is asked at the altar of both bride and groom: “Will you take this man/woman to be your husband/wife, be faithful, and all the rest of it… till death do you part?” Even though they both answer, “I do”, the statistics show that more than half of such couples will get a divorce later and end the marriage.

Who can we trust? God warned us:

However, we should reserve our total and absolute trust for God alone. And that takes more than the moving of the lips. To show our trust in God, we need to do at least the same or more than we do when we put our trust in people. Trusting people causes us to put our money where our mouth is, to accept what they tell us, to follow their advice, to let them work on our behalf, to trust their judgment, and much more.

You have trusted many, and been disappointed. Transfer all your trust, in mind and action, to God instead. 

You could do a lot worse.