Passage
having cast all your care upon him, for he cares about you.
having cast all your care upon him, for he cares about you.
1 Peter 5:5 Likewise [ye] younger, be subject to [the] elder, and all of you bind on humility towards one another; for God sets himself against [the] proud, but to [the] humble gives grace.
1 Peter 5:6 Humble yourselves therefore under the mighty hand of God, that he may exalt you in [the due] time;
1 Peter 5:7 having cast all your care upon him, for he cares about you.
1 Peter 5:8 Be vigilant, watch. Your adversary [the] devil as a roaring lion walks about seeking whom he may devour.
1 Peter 5:9 Whom resist, stedfast in faith, knowing that the selfsame sufferings are accomplished in your brotherhood which [is] in [the] world.
The verse centers on "having", "cast", "care", "upon", and "cares". It is saying that the verse draws attention to "having" and "cast", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 6's "Humble yourselves therefore under the mighty hand..." into verse 8's "Be vigilant watch Your adversary the devil...", so "having" and "cast" belong inside that flow. In 1 Peter context, the local focus is hope in suffering, holy conduct, submission, and grace.
A plain takeaway is to answer the verse's own emphasis on "having" and "cast" with trust shaped by these words, not by a vague optimism outside the passage.