Psalm 26 is a prayer for vindication against an unjust charge made against David; while Psalm 27 is a prayer for spiritual orientation toward God (verses 1-3); toward life (verses 4-6); and toward self (verses 7-14).
Psalm 28 is a prayer of deliverance, followed by thanksgiving for the answer. David was hopeless except for God. He depended on God and rejoiced in Him as the solid Rock of his salvation.
Psalm 29 is a Psalm of praise, ending with a tremendous promise to all the children of God. The Lord will give strength to His people; He will bless His people with peace. Today, the strength of God's redeemed comes through the person of the Holy Spirit. He is our refuge; He is our hope; He is our sustenance in time of trouble; He is our deliverer; He is our comforter; He is our keeper. The peace that passeth all understanding comes only from God. In order for a person to find that peace, he must receive Jesus Christ as his own personal Saviour.
Psalm 30 is a Psalm and song at the dedication of the house of David, after he had conquered Jerusalem and made it his capital. David had often been near death, but God brought him through. In this Psalm, David says he will sing praise to God forever.
David was a man after God's own heart. He never forgot where his strength and accomplishments came from. He was always faithful in giving thanks to God. Thanksgiving from Christians is pleasing to the Father. Too many times our prayers are filled only with requests, and we fail to thank God for all He has done for us. Philippians 4:6 says, "Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.".
Psalm 31 is a song of trust. David was in constant danger, trouble, grief, or humiliation, and he always implicitly trusted in God. Jesus quoted verse 5 of this Psalm as He died on the cross (see Luke 23:46).
