What to Do with Your Worry (1 Pet 5:6-7)
“Therefore humble yourselves under the mighty hand of God, that He may exalt you in due time, casting all your care upon Him, for He cares for you.”
This recalls Psalm 55:22 which exhorts, "Cast your burden on the Lord, and He shall sustain you; He shall never permit the righteous to be moved." Peter, of course, is also echoing Jesus' teaching ministry. Most notably, Matt 6:25-34 comes to mind when Jesus taught the multitudes during the Sermon on the Mount and commanded them multiple times saying, "Therefore, do not worry."
For commentary that succinctly summarizes the points of these two brief but important verses in Peter's letter, we may turn to a reputable New Testament scholar who wrote, “Seeing the relationship between the main verb (‘humble yourselves,’ v. 6) and the participle (‘casting all your anxiety upon him,’ NASB) is important because it shows that giving in to worry is an example of pride. The logical relationship between the two clauses is as follows: believers humble themselves by casting their worries on God. Conversely, if believers continue to worry, then they are caving in to pride. How can anxiety and worry be criticized as pride? We can see that it might be a lack of faith, but does it make sense to identify worry as pride? Worry is a form of pride because when believers are filled with anxiety, they are convinced that they must solve all the problems in their lives in their own strength. The only god they trust in is themselves. When believers throw their worries upon God, they express their trust in his mighty hand, acknowledging that he is Lord and Sovereign over all of life" (Schreiner).
Certainly, the main reason we cast our worry upon the Lord is because He truly cares for us, and He can actually do something about it! We know that God loves us. He gave us the absolute best when He gave us His Son who laid down His life for us. Why would He not now freely give us all other good things? He loves us and cares for us. He wants us to bring our burdens to Him so that He can do the heavy lifting. He is able to take away our guilt, give us confident assurance in the future, empower us for holy living by His Holy Spirit, give us everything we need for life and godliness, and more. Why would we not take our worry to such a friend?! He is the one with the "mighty hand" who sovereignly accomplishes His purposes in the world. When we turn ourselves over to Him, then we know that He will do what is best for us because we are a part of His family and His plans.
I suppose the last question we should ask and answer is, how do we take our worry to the Lord? How do we cast it upon Him? The apostle almost certainly understands this to happen through prayer. When we give ourselves over to the Lord in prayer, we may confess our sins and find forgiveness and cleansing, but we may also confess our concerns and worries to the Lord. We turn them over to Him, even "casting" them over to Him, trusting that He is more than able to handle our situations. This is faith. This is prayer.
Thus, we might picture a man in Peter's day who had a heavy load to carry from one place to another. He was humble enough to admit that he could not carry such a heavy load, so, little by little, he throws the items up onto the back of a faithful pack-mule who is able to bear the burden for him. We, too, must humble ourselves and cast each and every one of our worries upon the Lord through prayer so that He can do what we cannot.