Please read Psalm 30:1-12 again.
Most who call themselves Christians hate the doctrine of holiness; and the principal part of their studies, and those of their pastors, is to find out with how little Godly living they can expect to enter into the kingdom of God.
Verse 5, “For his anger endureth but a moment.” In the Hebrew language ‘There is a moment in His anger. In the evening weeping may endure: but in the morning will be joy.’
When God afflicts His people, it is for our advantage, that we may be partakers of his holiness, and be not condemned with the world. If he is angry with us, it is but for a moment; but when we have turn to Him, and seek His face, His favour is soon given. When weeping comes, it is only to endure for the evening; but singing will surely come in the morning. This description of God’s slowness to anger, and readiness to forgive, is given by David who was ‘a man after God’s own heart’ and looked as Him as his Judge and Father.
Verse 6, “In my prosperity I said, I shall never be moved.” A real problem developed in David’s heart at this point: Peace and prosperity had taken his heart off the Lord, and led him to suppose that “his mountain” stood strong, and that adversity could never affect him. He wanted to know the physical and political strength of his kingdom, and forgetting to depend upon God, he commanded Joab count the people; for which God punished him in 2 Samuel 24:1-17.
Verse 7, “Thou didst hide thy face.” Thou didst show thyself displeased with me for my pride and forgetfulness of thee: and then I found how vainly I had trusted in an arm of flesh.
Verse 8, “I cried to thee, O Lord … Made supplication.” I found no help except in Him against whom I had sinned.