The Lord indeed does not let the righteous go hungry (3). Yet that does not mean that baloney and cheese sandwiches will appear on the table every day. The Lord gave me abilities and provides situations for me to use those abilities to plan and obtain seeds, plant the seeds, and gather crops at harvest. Yet, he who plants nor he who waters is anything, but only God, who makes things grow (1 Corinthians 3:6)
So I work with the knowledge that God provides for he is in control. If I were lazy and remained a poor man expecting others to put baloney and cheese sandwiches on a table before me then I cannot blame God. “Lazy hands make a man poor (4) not God. “Diligent hands bring wealth (4)” as God enables.
Wisdom is not as hard as I think. In fact, verse 5 is very simple to understand. “He who gathers crops in summer is a wise son, but he who sleeps during harvest is a disgraceful son.” Wisdom is applying the truth, and that is often the hard part.