David may have written this psalm when he dedicated Araunah's threshing floor (which became the future site of the Temple), after God stopped the great plague he had used to discipline David (1Ch. 21:1-22:6). The serious illness mentioned in Psa 30:2-3 may refer to an illness David experienced or to the plague itself.
Psalms 30:5
Like a shot given by a doctor, the discomfort of God's anger lasts only a moment, but the good effects go on for a long time. Let God's anger be a sharp pain that warns you to turn from sin.
Psalms 30:6-7
Security had made David feel invincible. Although he knew that his riches and power had come from God, they had gone to his head, making him proud. Wealth, power, and fame can be intoxicating, making us feel self-reliant, self-secure, and independent of God. But this false security can be easily shattered. Don't be trapped by the false security of prosperity. Depend on God for your security, and you won't be shaken when worldly possessions disappear.
