Worrying about the future of self is common to the human race. Trusting that the Lord God will act on the person who trusts in him is not. Worrying is in my nature. Trusting that I will not be taken care of is not in my nature. This truth about human nature causes the soul to fall apart with worry illnesses.
Knowing this the Lord Jesus reminds me, “Entrust (Commit) your ways to the LORD. Trust him, and he will act {on your behalf}.” Young’s Literal Translation is pictorial, “Roll on Jehovah thy way, And trust upon Him, and He worketh,”
Chance, luck, and circumstance are not reality for in all things God works for the good of those who love him, who have been called according to his purpose. (Romans 8:28; Proverbs 16:3) Psalm 55:22 states, “Cast your cares on the LORD and he will sustain you; he will never let the righteous fall.” 1 Peter 5:7 states the same. “Cast all your anxiety on him because he cares for you.”
Verse 6 is specific as to what the Lord Jesus will do. “He will make your righteousness shine like the dawn, the justice of your cause like the noonday sun.” Not that there is more he will do on my behalf; just that in the premises of this Psalm this specific act of God is given. Isaiah was given and gives me, “Then your light will break forth like the dawn, and your healing will quickly appear; then your righteousness will go before you, and the glory of the LORD will be your rear guard.” (Isaiah 58:8)
