Thy testimonies are wonderful - This commences a new division of the psalm, indicated by the Hebrew letter Pe (פ p), corresponding to our “p.” The meaning of the expression here is, that the laws of God - the revelations of his will - are adapted to fill the mind with wonder. The mind is awed by their wisdom; their comprehensiveness; their extent; their spirituality; their benevolence: by the fact that laws are framed, so perfectly adapted to the end; so well suited to secure order, and to promote happiness.
Therefore doth my soul keep them - Because they are so surpassingly wise and benevolent; because they are so manifestly the work of wisdom and goodness.