Here in this wonderful verse we have both an invitation and a promise. The sense of the word “cast” in this passage is to lay all our concerns and cares, all our fears and fretting, upon the shoulders of the Lord by faith and prayer, with a confident expectation that God will hear (Ps. 55:19).

The word “burden” here in the original language means that which is given a person to carry. But the Lord does not want us to carry that burden alone. He does not want us to be weighed down by the heavy load of grief or care which would impede our progress on life’s journey. He invites us to hand over every burden to Him. The Lord Jesus says, “Come to Me, all you who labor and are heavy laden, and I will give you rest. Take My yoke upon you and learn from Me, for I am gentle and lowly in heart, and you will find rest for your souls. For My yoke is easy and My burden is light” (Mt. 11:28–30). These words are not only for those who feel the weight of their sins, but they are an invitation to anyone who is feeling the weight of the day.

Those who cast their cares on God will not be disappointed. The psalmist promises that the Lord will uphold anyone who cries out in the struggles of life. David mentions that he depended on the Lord throughout the day—in the evening after going through the day, in the morning before the hustle and bustle of the day, and even at noon when the heat of the day was beaming down upon him (Ps. 55:17). This reminds us of what it means to “pray without ceasing” (1 Th. 5:17). David knew the Lord was able to carry him and his burden; with confidence he would declare, “As for me, I will call upon God, and the Lord shall save me” (Ps. 55:16). He is able to deliver you and keep you from being shaken by whatever you are facing today! Cast your burden on the Lord and He will sustain you.