A.T. Robertson Commentary 1 Peter 5:7

"casting all your anxiety upon him, because he careth for you." — 1 Peter 5:7 (ASV)

Casting (επιριψαντες). First aorist active participle of επιριπτω, old verb, to throw upon, in N.T. only here and Lu 19:35 (casting their clothes on the colt), here from Ps 55:22. For μεριμνα see Mt 6:25,31,34.

He careth (αυτω μελε). Impersonal verb μελε (present active indicative) with dative αυτω, "it is a care to him." God does care (Luke 21:18).