"Peter said to have an attitude of trust.
The basis of that trust is the loving care God has repeatedly shown us.
You cast your anxiety on Him when you're able to say, however haltingly, "Lord, it's difficult.…I'm having trouble handling this trial, but I'm giving You the whole deal because I know You care for me."
The word translated "casting"was used to describe throwing something on something else, such as a blanket over a pack animal (e.g., Luke 19:35).
Take all your anxiety—all the discontent, discouragement, despair, questioning, pain, and suffering that you're going through—and toss it all onto God.
Trade it in for trust in God, who really cares about you."